questao6.html

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>

<body>

    <input id="salario" type="text" placeholder="Digite o seu salário:"> <br> <br>

    <select id="valor">

        <option value="0.1">INSS</option>
        <option value="0.2">IR</option>
        <option value="0.05">VT</option>

    </select> <br><br>

    <button onclick="ver()">Ver desconto</button> <br><br>

    <div>

        Valor desse desconto: R$<b id="total">X,XX</b>

    </div>

    <script>

        function ver() {

            var salario_total = Number(salario.value) * valor.value;
            total.innerHTML = salario_total;

     
        }


    </script>


</body>

</html>