diff --git a/src/01-functions.js b/src/01-functions.js
index 8d772b6a..b7a42631 100644
--- a/src/01-functions.js
+++ b/src/01-functions.js
@@ -9,7 +9,9 @@
  *  alwaysTrue();
  *  //> true
  */
-function alwaysTrue() {}
+function alwaysTrue() {
+  return true
+}
 
 /**
  * greet()
@@ -24,7 +26,9 @@ function alwaysTrue() {}
  *  greet("Ian");
  *  //> "Hello, Ian."
  */
-function greet() {}
+function greet(name) {
+  return `Hello, ${name}.`
+}
 
 /**
  * add()
@@ -39,7 +43,9 @@ function greet() {}
  *  add(10, 20);
  *  //> 30
  */
-function add() {}
+function add(a, b) {
+return a + b
+}
 
 /**
  * multiply()
@@ -54,7 +60,9 @@ function add() {}
  *  multiply(2, 5);
  *  //> 10
  */
-function multiply() {}
+function multiply(a, b) {
+  return a * b
+}
 
 /**
  * average()
@@ -74,7 +82,9 @@ function multiply() {}
  *  average(10, 6);
  *  //> 8 // 10 + 6 = 16; 16/2 = 8;
  */
-function average() {}
+function average(a, b) {
+  return (a + b) / 2
+}
 
 /**
  * averageThree()
@@ -93,7 +103,9 @@ function average() {}
  *  averageThree(10, 11, 19);
  *  //> 10 // 10 + 11 + 19 = 30; 30 / 3 = 10;
  */
-function averageThree() {}
+function averageThree(a, b, c) {
+  return (a + b + c) / 3
+}
 
 /**
  * compareTypes()
@@ -112,7 +124,13 @@ function averageThree() {}
  *  compareTypes("left", 10);
  *  //> false
  */
-function compareTypes() {}
+function compareTypes(a, b) {
+  if(typeof a === typeof b){
+    return true
+  } else {
+    return false
+  }
+}
 
 /**
  * flipSign()
@@ -131,7 +149,9 @@ function compareTypes() {}
  *  flipSign(50);
  *  //> -50
  */
-function flipSign() {}
+function flipSign(a) {
+  return -a
+}
 
 /**
  * joinStringsWithSpaces()
@@ -151,7 +171,9 @@ function flipSign() {}
  *  joinStringsWithSpaces("left", "right", "up", "down", "away");
  *  //> "left right up down away"
  */
-function joinStringsWithSpaces() {}
+function joinStringsWithSpaces(a, b, c, d, e) {
+  return `${a} ${b} ${c} ${d} ${e}`
+}
 
 /**
  * getFirstAndLastCharacter()
@@ -168,7 +190,10 @@ function joinStringsWithSpaces() {}
  *  getFirstAndLastCharacter("upwards");
  *  //> "us"
  */
-function getFirstAndLastCharacter() {}
+function getFirstAndLastCharacter(a) {
+
+  return a[0] + a[a.length -1]
+}
 
 // Do not change the code below.
 module.exports = {
diff --git a/src/02-data-types.js b/src/02-data-types.js
index 79cf96cf..17f64cca 100644
--- a/src/02-data-types.js
+++ b/src/02-data-types.js
@@ -9,7 +9,9 @@
  *  getLengthOfString("down");
  *  //> 4
  */
-function getLengthOfString(str) {}
+function getLengthOfString(str) {
+  return str.length
+}
 
 /**
  * convertToNumber()
@@ -22,7 +24,9 @@ function getLengthOfString(str) {}
  *  convertToNumber("111");
  *  //> 111
  */
-function convertToNumber(val) {}
+function convertToNumber(val) {
+  return Number(val)
+}
 
 /**
  * convertToString()
@@ -36,7 +40,9 @@ function convertToNumber(val) {}
  *  convertToString(99);
  *  //> "99"
  */
-function convertToString(val) {}
+function convertToString(val) {
+  return `${val}`
+}
 
 /**
  * convertToShoutingText()
@@ -49,7 +55,9 @@ function convertToString(val) {}
  *  convertToShoutingText("Hello There");
  *  //> "HELLO THERE"
  */
-function convertToShoutingText(text) {}
+function convertToShoutingText(text) {
+  return text.toUpperCase()
+}
 
 /**
  * convertToWhisperText()
@@ -62,7 +70,9 @@ function convertToShoutingText(text) {}
  *  convertToWhisperText("Hello There");
  *  //> "hello there"
  */
-function convertToWhisperText(text) {}
+function convertToWhisperText(text) {
+  return text.toLowerCase()
+}
 
 /**
  * checkIfCharacterIsInString()
@@ -79,7 +89,14 @@ function convertToWhisperText(text) {}
  *  checkIfCharacterIsInString("hello there", "a");
  *  //> false
  */
-function checkIfCharacterIsInString(text, character) {}
+function checkIfCharacterIsInString(text, character) {
+  if (text.includes(character)){
+    return true
+  } else{
+    return false
+  }
+  }
+
 
 /**
  * isEven()
@@ -95,7 +112,14 @@ function checkIfCharacterIsInString(text, character) {}
  *  isEven(11);
  *  //> false
  */
-function isEven(num) {}
+function isEven(num) {
+  if (num % 2 === 0){
+    return true
+    }else{
+      return false
+    }
+  }
+
 
 /**
  * isOdd()
@@ -111,7 +135,13 @@ function isEven(num) {}
  *  isOdd(11);
  *  //> true
  */
-function isOdd(num) {}
+function isOdd(num) {
+  if (num % 2 !== 0){
+    return true
+  }else {
+    return false
+  }
+}
 
 /**
  * isTruthy()
@@ -127,7 +157,13 @@ function isOdd(num) {}
  *  isTruthy(null);
  *  //> false
  */
-function isTruthy(val) {}
+function isTruthy(val) {
+  if (val){
+    return true
+  }else{
+    return false
+  }
+}
 
 /**
  * isFalsy()
@@ -143,7 +179,13 @@ function isTruthy(val) {}
  *  isFalsy(" ");
  *  //> false
  */
-function isFalsy(val) {}
+function isFalsy(val) {
+  if (!val){
+    return true
+  }else{
+    return false
+  }
+}
 
 // Do not change the code below.
 module.exports = {
diff --git a/src/03-control-flow.js b/src/03-control-flow.js
index 8f675935..7e28b106 100644
--- a/src/03-control-flow.js
+++ b/src/03-control-flow.js
@@ -14,7 +14,13 @@
  *  isEqual(10, "10");
  *  //> false
  */
-function isEqual(a, b) {}
+function isEqual(a, b) {
+  if (a === b) {
+    return true
+  } else {
+    return false
+  }
+}
 
 /**
  * findLarger()
@@ -28,7 +34,13 @@ function isEqual(a, b) {}
  *  findLarger(19, 7);
  *  //> 19
  */
-function findLarger(a, b) {}
+function findLarger(a, b) {
+  if (a > b) {
+    return a
+  } else {
+    return b
+  }
+}
 
 /**
  * findLargerOrTie()
@@ -45,7 +57,15 @@ function findLarger(a, b) {}
  *  findLargerOrTie(0, 0);
  *  //> "tie"
  */
-function findLargerOrTie(a, b) {}
+function findLargerOrTie(a, b) {
+  if (a > b) {
+    return a
+  } else if (a < b) {
+    return b
+  } else if (a === b) {
+    return "tie"
+  }
+}
 
 /**
  * positiveNegativeOrZero()
@@ -65,7 +85,15 @@ function findLargerOrTie(a, b) {}
  *  positiveNegativeOrZero(1);
  *  //> "Positive"
  */
-function positiveNegativeOrZero(a) {}
+function positiveNegativeOrZero(a) {
+  if (a > 0) {
+    return "Positive"
+  } else if (a < 0) {
+    return "Negative"
+  } else if (a === 0) {
+    return "Zero"
+  }
+}
 
 /**
  * aroundTheWorldGreeting()
@@ -86,7 +114,17 @@ function positiveNegativeOrZero(a) {}
  *  aroundTheWorldGreeting();
  *  //> "Hello World"
  */
-function aroundTheWorldGreeting(language) {}
+function aroundTheWorldGreeting(language) {
+  if (language === "english") {
+    return "Hello World"
+  } else if (language === "spanish") {
+    return "Hola Mundo"
+  } else if (language === "german") {
+    return "Hallo Welt"
+  } else {
+    return "Hello World"
+  }
+}
 
 /**
  * aroundTheWorldGreetingWithSwitch()
@@ -109,7 +147,21 @@ function aroundTheWorldGreeting(language) {}
  *  aroundTheWorldGreetingWithSwitch();
  *  //> "Hello World"
  */
-function aroundTheWorldGreetingWithSwitch(language) {}
+function aroundTheWorldGreetingWithSwitch(language) {
+  switch (language) {
+    case "english":
+      return "Hello World";
+      break;
+    case "spanish":
+      return "Hola Mundo";
+      break;
+    case "german":
+      return "Hallo Welt"
+      break;
+    default:
+      return "Hello World"
+  }
+}
 
 /**
  * calculateLetterGrade()
@@ -128,8 +180,19 @@ function aroundTheWorldGreetingWithSwitch(language) {}
  *  calculateLetterGrade(99);
  *  //> "A"
  */
-function calculateLetterGrade(grade) {}
-
+function calculateLetterGrade(grade) {
+  if (grade >= 90) {
+    return "A"
+  } else if (grade >= 80 && grade < 90) {
+    return "B"
+  } else if (grade >= 70 && grade < 80) {
+    return "C"
+  } else if (grade >= 60 && grade < 70) {
+    return "D"
+  } else if (grade < 60) {
+    return "F"
+  }
+}
 /**
  * animalCounts()
  * ---------------------
@@ -146,7 +209,13 @@ function calculateLetterGrade(grade) {}
  *  animalCounts("pig", 1);
  *  //> "1 pig"
  */
-function animalCounts(animal, numberOfAnimals) {}
+function animalCounts(animal, numberOfAnimals) {
+  if (numberOfAnimals > 1) {
+    return `${numberOfAnimals} ${animal}s`
+  } else {
+    return `${numberOfAnimals} ${animal}`
+  }
+}
 
 /**
  * evenOrOdd()
@@ -163,7 +232,13 @@ function animalCounts(animal, numberOfAnimals) {}
  *  evenOrOdd(48);
  *  //> "Even"
  */
-function evenOrOdd(a) {}
+function evenOrOdd(a) {
+  if (a % 2 !== 0) {
+    return "Odd"
+  } else if (a % 2 === 0) {
+    return "Even"
+  }
+}
 
 /**
  * evenOrOddWithTernary()
@@ -179,7 +254,10 @@ function evenOrOdd(a) {}
  *  evenOrOddWithTernary(8);
  *  //> "Even"
  */
-function evenOrOddWithTernary(a) {}
+function evenOrOddWithTernary(a) {
+  return a % 2 === 0 ? "Even" : "Odd";
+}
+
 
 // Do not change any code below this line.
 module.exports = {
diff --git a/src/04-arrays.js b/src/04-arrays.js
index 5317f7c3..6317f86a 100644
--- a/src/04-arrays.js
+++ b/src/04-arrays.js
@@ -10,7 +10,10 @@
  *  createEmptyArray();
  *  //> []
  */
-function createEmptyArray() {}
+function createEmptyArray() {
+  let arr = []
+  return arr
+}
 
 /**
  * createArrayWithTwoElements()
@@ -24,7 +27,10 @@ function createEmptyArray() {}
  *  createArrayWithTwoElements(true, false);
  *  //> [ true, false ]
  */
-function createArrayWithTwoElements(a, b) {}
+function createArrayWithTwoElements(a, b) {
+  let newArr = [a, b];
+  return [newArr[0], newArr[newArr.length - 1]]
+}
 
 /**
  * getArrayLength()
@@ -37,7 +43,9 @@ function createArrayWithTwoElements(a, b) {}
  *  getArrayLength([ 10, 20, 30 ]);
  *  //> 3
  */
-function getArrayLength(array) {}
+function getArrayLength(array) {
+  return array.length
+}
 
 /**
  * getFirstElementOfArray()
@@ -51,7 +59,9 @@ function getArrayLength(array) {}
  *  getFirstElementOfArray([ 10, 20, 30 ]);
  *  //> 10
  */
-function getFirstElementOfArray(array) {}
+function getFirstElementOfArray(array) {
+  return array[0]
+}
 
 /**
  * getLastElementOfArray()
@@ -65,7 +75,9 @@ function getFirstElementOfArray(array) {}
  *  getLastElementOfArray([ null, undefined ]);
  *  //> undefined
  */
-function getLastElementOfArray(array) {}
+function getLastElementOfArray(array) {
+  return array[array.length - 1]
+}
 
 /**
  * addElementToEndOfArray()
@@ -79,7 +91,10 @@ function getLastElementOfArray(array) {}
  *  addElementToEndOfArray([ 10 ], 9);
  *  //> [ 10, 9 ]
  */
-function addElementToEndOfArray(array, element) {}
+function addElementToEndOfArray(array, element) {
+  array.push(element)
+  return array
+}
 
 /**
  * removeElementFromEndOfArray()
@@ -92,7 +107,9 @@ function addElementToEndOfArray(array, element) {}
  *  removeElementFromEndOfArray([ 10, 9, 8 ]);
  *  //> 8
  */
-function removeElementFromEndOfArray(array) {}
+function removeElementFromEndOfArray(array) {
+  return array.pop()
+}
 
 /**
  * addElementToFrontOfArray()
@@ -106,7 +123,10 @@ function removeElementFromEndOfArray(array) {}
  *  addElementToFrontOfArray([ 10 ], 9);
  *  //> [ 9, 10 ]
  */
-function addElementToFrontOfArray(array, element) {}
+function addElementToFrontOfArray(array, element) {
+  array.unshift(element)
+  return array
+}
 
 /**
  * removeElementFromFrontOfArray()
@@ -119,7 +139,9 @@ function addElementToFrontOfArray(array, element) {}
  *  removeElementFromFrontOfArray([ 10, 9, 8 ]);
  *  //> 10
  */
-function removeElementFromFrontOfArray(array) {}
+function removeElementFromFrontOfArray(array) {
+  return array.shift()
+ }
 
 /**
  * getMiddleElement()
@@ -135,7 +157,9 @@ function removeElementFromFrontOfArray(array) {}
  *  getMiddleElement([ 10, null, "30" ]);
  *  //> null
  */
-function getMiddleElement(array) {}
+function getMiddleElement(array) {
+  return array[(array.length - 1) / 2]
+ }
 
 // Do not change any code below this line.
 module.exports = {
diff --git a/src/05-objects.js b/src/05-objects.js
index 3e97313c..b7bb2fe0 100644
--- a/src/05-objects.js
+++ b/src/05-objects.js
@@ -9,7 +9,10 @@
  *  createEmptyObject()
  *  //> {}
  */
-function createEmptyObject() {}
+function createEmptyObject() {
+  let obj = {}
+  return obj
+}
 
 /**
  * createObjectWithValue()
@@ -22,7 +25,10 @@ function createEmptyObject() {}
  *  createObjectWithValue(19);
  *  //> { whateverKey: 19 }
  */
-function createObjectWithValue(val) {}
+function createObjectWithValue(val) {
+  let obj = { val }
+  return obj
+}
 
 /**
  * createObjectWithKey()
@@ -35,7 +41,10 @@ function createObjectWithValue(val) {}
  *  createObjectWithKey("left");
  *  //> { left: false }
  */
-function createObjectWithKey(key) {}
+function createObjectWithKey(key) {
+  let obj = { [key]: 1 }
+  return obj
+}
 
 /**
  * createObjectWithKeyValuePair()
@@ -49,7 +58,10 @@ function createObjectWithKey(key) {}
  *  createObjectWithKeyValuePair("left", "right");
  *  //> { left: "right" }
  */
-function createObjectWithKeyValuePair(key, val) {}
+function createObjectWithKeyValuePair(key, val) {
+  let obj = { [key]: val }
+  return obj
+}
 
 /**
  * getNameFromObject()
@@ -62,7 +74,9 @@ function createObjectWithKeyValuePair(key, val) {}
  *  getNameFromObject({ name: "Jay" });
  *  //> "Jay"
  */
-function getNameFromObject(object) {}
+function getNameFromObject(object) {
+  return object.name
+}
 
 /**
  * getAgeFromObject()
@@ -75,7 +89,9 @@ function getNameFromObject(object) {}
  *  getAgeFromObject({ age: 30 });
  *  //> 30
  */
-function getAgeFromObject(object) {}
+function getAgeFromObject(object) {
+  return object.age
+}
 
 /**
  * addValueToObject()
@@ -89,7 +105,10 @@ function getAgeFromObject(object) {}
  *  addValueToObject({ left: true }, false);
  *  //> { left: true, key: false }
  */
-function addValueToObject(object, val) {}
+function addValueToObject(object, val) {
+  object.val = val
+  return object
+}
 
 /**
  * addKeyToObject()
@@ -103,7 +122,11 @@ function addValueToObject(object, val) {}
  *  addKeyToObject({ right: false }, "left");
  *  //> { right: false, left: true }
  */
-function addKeyToObject(object, key) {}
+function addKeyToObject(object, key) {
+  object[key] = 1
+  return object
+
+}
 
 /**
  * addKeyValuePairToObject()
@@ -118,7 +141,10 @@ function addKeyToObject(object, key) {}
  *  addKeyValuePairToObject({ up: true }, "left", false);
  *  //> { up: true, left: false }
  */
-function addKeyValuePairToObject(object, key, val) {}
+function addKeyValuePairToObject(object, key, val) {
+  object[key]=val
+  return object
+}
 
 /**
  * deleteKeyFromObject()
@@ -132,7 +158,10 @@ function addKeyValuePairToObject(object, key, val) {}
  *  deleteKeyFromObject({ left: true, right: false }, "left");
  *  //> { right: false }
  */
-function deleteKeyFromObject(object, key) {}
+function deleteKeyFromObject(object, key) {
+   delete object[key]
+   return object
+ }
 
 // Do not change any code below this line.
 module.exports = {
diff --git a/src/06-loops.js b/src/06-loops.js
index 1116cc27..a79a17c7 100644
--- a/src/06-loops.js
+++ b/src/06-loops.js
@@ -11,7 +11,17 @@
  *  //> 25
  *  (3 + 4 + 5 + 6 + 7 = 25)
  */
-function rangeSum(min, max) {}
+
+// add numbers between min and max inclusive
+// return sum
+
+function rangeSum(min, max) {
+  let sum = 0
+  for (let i = min; i <= max; i++) {
+    sum += i
+  }
+  return sum
+}
 
 /**
  * rangeOdd()
@@ -25,7 +35,22 @@ function rangeSum(min, max) {}
  *  rangeOdd(10, 15);
  *  //> [ 15, 13, 11 ]
  */
-function rangeOdd(min, max) {}
+
+// created odd arr variable
+// loop over given nums
+// check if it is odd
+// add odd to arr
+//return arr
+
+function rangeOdd(min, max) {
+  let odd = []
+  for (let i = max; i >= min; i--) {
+    if (i % 2 !== 0) {
+      odd.push(i)
+    }
+  }
+  return odd
+}
 
 /**
  * rangeEveryOther()
@@ -39,7 +64,13 @@ function rangeOdd(min, max) {}
  *  rangeEveryOther(11, 18);
  *  //> [ 11, 13, 15, 17 ]
  */
-function rangeEveryOther(min, max) {}
+function rangeEveryOther(min, max) {
+  let arr = []
+  for (let i = min; i <= max; i += 2) {
+    arr.push(i)
+  }
+  return arr
+}
 
 /**
  * containsWhileLoop()
@@ -61,7 +92,16 @@ function rangeEveryOther(min, max) {}
  *  containsWhileLoop([ "left", "up", "right" ], "down");
  *  //> false
  */
-function containsWhileLoop(array, target) {}
+function containsWhileLoop(array, target) {
+  let i = 0
+  while (i < array.length) {
+    if (array[i] === target) {
+      return true
+    } i++;
+  } return false
+}
+
+
 
 /**
  * containsForLoop()
@@ -83,7 +123,14 @@ function containsWhileLoop(array, target) {}
  *  containsForLoop([ "left", "up", "right" ], "down");
  *  //> false
  */
-function containsForLoop(array, target) {}
+function containsForLoop(array, target) {
+  for (let i = 0; i < array.length; i++) {
+    if (array[i] === target) {
+      return true
+    }
+  } return false
+}
+
 
 /**
  * targetCount()
@@ -97,7 +144,13 @@ function containsForLoop(array, target) {}
  *  targetCount([ 10, 20, 10, 20, 30 ], 10);
  *  //> 2
  */
-function targetCount(array, target) {}
+function targetCount(array, target) {
+  let counter = 0
+  for (let i = 0; i < array.length; i++)
+    if (array[i] === target) {
+      counter += 1
+    } return counter
+}
 
 /**
  * firstIndexFound()
@@ -117,7 +170,15 @@ function targetCount(array, target) {}
  *  firstIndexFound([ "left", "right", "left" ], "up");
  *  //> -1
  */
-function firstIndexFound(array, target) {}
+function firstIndexFound(array, target) {
+  for (let i = 0; i < array.length; i++) {
+    if (array[i] === target) {
+      return i
+    }
+  } return -1
+}
+
+
 
 /**
  * lastIndexFound()
@@ -137,7 +198,14 @@ function firstIndexFound(array, target) {}
  *  lastIndexFound([ "left", "right", "left" ], "up");
  *  //> -1
  */
-function lastIndexFound(array, target) {}
+function lastIndexFound(array, target) {
+  for (let i = array.length - 1; i > 0; i--) {
+    if (array[i] === target) {
+      return i
+    }
+  } 
+  return -1
+}
 
 /**
  * timesIndex()
@@ -151,7 +219,12 @@ function lastIndexFound(array, target) {}
  *  //> [ 7 * 0, 10 * 1, 11 * 2 ]
  *  //> [ 0, 10, 22 ]
  */
-function timesIndex(array) {}
+function timesIndex(array) {
+  let newArr = []
+  for (let i = 0; i < array.length; i++) {
+    newArr.push(array[i] * i)
+  } return newArr
+}
 
 /**
  * cumulativeSum()
@@ -165,7 +238,14 @@ function timesIndex(array) {}
  *  //> [ 5, 5 + 2, 5 + 2 + 9 ]
  *  //> [ 5, 7, 16 ]
  */
-function cumulativeSum(array) {}
+function cumulativeSum(array) {
+  let newArr = []
+  let sum = 0
+  for (let i = 0; i < array.length; i++) {
+    newArr.push(sum += array[i])
+  } 
+  return newArr
+}
 
 // Do not change anything below this line.
 module.exports = {
diff --git a/src/07-even-more-loops.js b/src/07-even-more-loops.js
index 250fde4a..5f7e8c38 100644
--- a/src/07-even-more-loops.js
+++ b/src/07-even-more-loops.js
@@ -12,7 +12,12 @@
  *  shoutForLoop([ "A", "Very", "Happy", "Array" ]);
  *  //> [ "A!", "Very!", "Happy!", "Array!" ];
  */
-function shoutForLoop(array) {}
+function shoutForLoop(array) {
+  let newArr = []
+  for (let i = 0; i < array.length; i++) {
+    newArr.push(array[i] + "!")
+  } return newArr
+}
 
 /**
  * shoutWhileLoop()
@@ -28,7 +33,14 @@ function shoutForLoop(array) {}
  *  shoutWhileLoop([ "A", "Very", "Happy", "Array" ]);
  *  //> [ "A!", "Very!", "Happy!", "Array!" ];
  */
-function shoutWhileLoop(array) {}
+function shoutWhileLoop(array) {
+  let i = 0
+  let newArr = []
+  while (i < array.length) {
+    newArr.push(array[i] + "!")
+    i++;
+  } return newArr
+}
 
 /**
  * shoutForOfLoop()
@@ -44,7 +56,12 @@ function shoutWhileLoop(array) {}
  *  shoutForOfLoop([ "A", "Very", "Happy", "Array" ]);
  *  //> [ "A!", "Very!", "Happy!", "Array!" ];
  */
-function shoutForOfLoop(array) {}
+function shoutForOfLoop(array) {
+  let newArr = []
+  for (element of array) {
+    newArr.push(element + "!")
+  } return newArr
+}
 
 /**
  * sumArray()
@@ -57,7 +74,12 @@ function shoutForOfLoop(array) {}
  *  sumArray([ 10, 0, 10, 11 ]);
  *  //> 31
  */
-function sumArray(array) {}
+function sumArray(array) {
+  let sum = 0
+  for (let i = 0; i < array.length; i++) {
+    sum += array[i]
+  } return sum
+}
 
 /**
  * oddArray()
@@ -70,7 +92,14 @@ function sumArray(array) {}
  *  oddArray([ 11, 15, 20, 22, 37 ]);
  *  //> [ 11, 15, 37 ]
  */
-function oddArray(array) {}
+function oddArray(array) {
+  let newArr = []
+  for (let i = 0; i < array.length; i++) {
+    if (array[i] % 2 !== 0) {
+      newArr.push(array[i])
+    }
+  } return newArr
+}
 
 /**
  * evenArray()
@@ -83,7 +112,14 @@ function oddArray(array) {}
  *  evenArray([ 11, 15, 20, 22, 37 ]);
  *  //> [ 20, 22 ]
  */
-function evenArray(array) {}
+function evenArray(array) {
+  let newArr = []
+  for (let i = 0; i < array.length; i++) {
+    if (array[i] % 2 === 0) {
+      newArr.push(array[i])
+    }
+  } return newArr
+}
 
 /**
  * findSmallest()
@@ -96,7 +132,10 @@ function evenArray(array) {}
  *  findSmallest([ 0, 11, -2, 5 ]);
  *  //> -2
  */
-function findSmallest(array) {}
+function findSmallest(array) {
+  for (let i = 0; i < array.length; i++) {
+  } return Math.min(...array)
+}
 
 /**
  * findLargest()
@@ -109,7 +148,10 @@ function findSmallest(array) {}
  *  findLargest([ 0, 11, -2, 5 ]);
  *  //> 11
  */
-function findLargest(array) {}
+function findLargest(array) {
+  for (let i = 0; i < array.length; i++) {
+  } return Math.max(...array)
+}
 
 /**
  * findEqual()
@@ -126,8 +168,14 @@ function findLargest(array) {}
  *  findEqual([ 0, 11, -2, 5 ], 9);
  *  //> false
  */
-function findEqual(array, selected) {}
-
+function findEqual(array, selected) {
+  let arrEqual = []
+  for (let i = 0; i < array.length; i++) {
+    if (array[i] === selected) {
+      return true
+    }
+  } return false
+}
 /**
  * removeDuplicates()
  * ---------------------
@@ -143,7 +191,14 @@ function findEqual(array, selected) {}
  *  //> [ 1, 11, 2, 3, 4, 9 ]
  */
 
-function removeDuplicates(array) {}
+function removeDuplicates(array) {
+  let newArr = []
+  for (let i = 0; i < array.length; i++) {
+    if (!newArr.includes(array[i])) {
+      newArr.push(array[i])
+    }
+  } return newArr
+}
 
 // Do not change any code below this line.
 module.exports = {
diff --git a/src/08-accessing.js b/src/08-accessing.js
index 079908aa..f4c1b9f1 100644
--- a/src/08-accessing.js
+++ b/src/08-accessing.js
@@ -32,7 +32,9 @@
  *  getFirstName(person);
  *  //> "Rachel"
  */
-function getFirstName(person) {}
+function getFirstName(person) {
+  return person.names.first
+}
 
 /**
  * getLastName()
@@ -45,7 +47,9 @@ function getFirstName(person) {}
  *  getLastName(person);
  *  //> "Rojas"
  */
-function getLastName(person) {}
+function getLastName(person) {
+  return person.names.last
+}
 
 /**
  * getAddressStreet()
@@ -58,7 +62,9 @@ function getLastName(person) {}
  *  getAddressStreet(person);
  *  //> "697 Pine Drive"
  */
-function getAddressStreet(person) {}
+function getAddressStreet(person) {
+  return person.address.street
+}
 
 /**
  * getCountOfPhoneNumbers()
@@ -71,7 +77,12 @@ function getAddressStreet(person) {}
  *  getCountOfPhoneNumbers(person);
  *  //> 2
  */
-function getCountOfPhoneNumbers(person) {}
+function getCountOfPhoneNumbers(person) {
+  let counter = 0
+  for (let i = 0; i < person.numbers.length; i++) {
+    counter += 1
+  } return counter
+}
 
 /**
  * getFirstPhoneNumber()
@@ -87,7 +98,9 @@ function getCountOfPhoneNumbers(person) {}
  *  getFirstPhoneNumber(person);
  *  //> 7185550921
  */
-function getFirstPhoneNumber(person) {}
+function getFirstPhoneNumber(person) {
+  return person.numbers[0]
+}
 
 /**
  * getLastPhoneNumber()
@@ -103,7 +116,9 @@ function getFirstPhoneNumber(person) {}
  *  getLastPhoneNumber(person);
  *  //> 7185558611
  */
-function getLastPhoneNumber(person) {}
+function getLastPhoneNumber(person) {
+  return person.numbers[person.numbers.length-1]
+ }
 
 /**
  * getFullName()
@@ -116,7 +131,9 @@ function getLastPhoneNumber(person) {}
  *  getFullName(person);
  *  //> "Rachel Eleanor Rojas"
  */
-function getFullName(person) {}
+function getFullName(person) {
+  return `${person.names.first} ${person.names.middle} ${person.names.last}`
+}
 
 /**
  * getCityAndState()
@@ -132,7 +149,9 @@ function getFullName(person) {}
  *  getCityAndState(person);
  *  //> "Staten Island, NY"
  */
-function getCityAndState(person) {}
+function getCityAndState(person) {
+  return `${person.address.city}, ${person.address.state}`
+ }
 
 /**
  * getFullAddress()
@@ -148,7 +167,9 @@ function getCityAndState(person) {}
  *  getFullAddress(person);
  *  //> "697 Pine Drive 2A, Staten Island, NY, 10306"
  */
-function getFullAddress(person) {}
+function getFullAddress(person) { 
+  return `${person.address.street} ${person.address.unit}, ${person.address.city}, ${person.address.state}, ${person.address.zip}`
+}
 
 /**
  * getFlatObject()
@@ -171,8 +192,20 @@ function getFullAddress(person) {}
       numbers: [7185550921, 7185558611],
     };
  */
-function getFlatObject(person) {}
-
+function getFlatObject(person) {
+  let flatObj= {
+  first: person.names.first,
+  middle: person.names.middle,
+  last: person.names.last,
+  street: person.address.street,
+  unit: person.address.unit,
+  city: person.address.city,
+  state: person.address.state,
+  zip: person.address.zip,
+  numbers: person.numbers
+}
+return flatObj
+}
 // Do not change the code below.
 module.exports = {
   getFirstName,
diff --git a/src/09-word-problems.js b/src/09-word-problems.js
index 2f63d723..7751711a 100644
--- a/src/09-word-problems.js
+++ b/src/09-word-problems.js
@@ -19,7 +19,19 @@
  *  applyDiscount(1000, 9, true);
  *  //> 700
  */
-function applyDiscount(priceInCents, age, hasMembership) {}
+function applyDiscount(priceInCents, age, hasMembership) {
+  let total = 0;
+  if ((age <= 10 && hasMembership) || (age >= 65 && hasMembership)) {
+    total = priceInCents - priceInCents * 0.3;
+  } else if (hasMembership) {
+    total = priceInCents - priceInCents * 0.2;
+  } else if (age <= 10 || age >= 65) {
+    total = priceInCents - priceInCents * 0.1;
+  } else {
+    total = priceInCents;
+  }
+  return total;
+}
 
 /**
  * getCartTotal()
@@ -40,7 +52,13 @@ function applyDiscount(priceInCents, age, hasMembership) {}
     getCartTotal(cart);
  *  //> "$30.00"
  */
-function getCartTotal(products) {}
+function getCartTotal(products) {
+  let total = 0;
+  for (let i = 0; i < products.length; i++) {
+    total += products[i].priceInCents * products[i].quantity * 0.01;
+  }
+  return `$${total.toFixed(2)}`;
+}
 
 /**
  * compareLocations()
@@ -80,7 +98,49 @@ function getCartTotal(products) {}
     compareLocations(address1, address2);
     //> "Same city."
  */
-function compareLocations(address1, address2) {}
+function compareLocations(address1, address2) {
+  if (
+    address1.street === address2.street &&
+    address1.city === address2.city &&
+    address1.state === address2.state &&
+    address1.zip === address2.zip
+  ) {
+    return "Same building.";
+  } else if (
+    address1.city === address2.city &&
+    address1.state === address2.state &&
+    address1.zip === address2.zip
+  ) {
+    return "Same city.";
+  } else if (address1.state === address2.state) {
+    return "Same state.";
+  } else {
+    return "Addresses are not near each other.";
+  }
+}
+// if (
+//   address1.street &&
+//   address1.city &&
+//   address1.state &&
+//   address1.zip === address2.street &&
+//   address2.city &&
+//   address2.state &&
+//   address2.zip
+// ) {
+//   return "Same building.";
+// } else if (
+//   address1.city &&
+//   address1.state &&
+//   address1.zip === address2.city &&
+//   address2.state &&
+//   address2.zip
+// ) {
+//   return "Same city.";
+// } else if (address1.state === address2.state) {
+//   return "Same state.";
+// } else {
+// }
+// return "Addresses are not near each other.";
 
 /**
  * gradeAssignments()
@@ -127,7 +187,26 @@ function compareLocations(address1, address2) {}
     //>   },
     //> ];
  */
-function gradeAssignments(assignments) {}
+function gradeAssignments(assignments) {
+  for (let i = 0; i < assignments.length; i++) {
+    if (assignments[i].kind === `PASS-FAIL`) {
+      assignments[i].score.received === assignments[i].score.max
+        ? (assignments[i]["status"] = `PASSED`)
+        : (assignments[i]["status"] = `FAILED`);
+    } else if (assignments[i].kind === `PERCENTAGE`) {
+      let percentage =
+        (assignments[i].score.received / assignments[i].score.max) * 100;
+      percentage >= 80
+        ? (assignments[i]["status"] = `PASSED: ${percentage.toFixed(1)}%`)
+        : (assignments[i]["status"] = `FAILED: ${percentage.toFixed(1)}%`);
+    } else {
+      assignments[i][
+        "status"
+      ] = `SCORE: ${assignments[i].score.received}/${assignments[i].score.max}`;
+    }
+  }
+  return assignments;
+}
 
 /**
  * createLineOrder()
@@ -152,7 +231,18 @@ function gradeAssignments(assignments) {}
     createLineOrder(people);
     //> [ "Ray Anderson", "America Marsh", "Wade Carson", "Patience Patel" ]
  */
-function createLineOrder(people) {}
+function createLineOrder(people) {
+  let memberArray = [];
+  let notMemberArray = [];
+  for (let i = 0; i < people.length; i++) {
+    if (people[i].hasMembership) {
+      memberArray.push(people[i].name);
+    } else {
+      notMemberArray.push(people[i].name);
+    }
+  }
+  return memberArray.concat(notMemberArray);
+}
 
 module.exports = {
   applyDiscount,