Adding Variables and prompts.  var hourlyRate
var numberOfHoursWorked = prompt("How many hours have you worked?");
var numberOfHoursBilled = prompt("How many hours have you billed?");
var numberOfHoursPaid = prompt("How many hours have you already been paid?");
var numberOfHoursOwed = prompt("How many hours are you owed?");
var amountOwed = "The amount you are owed is $"+ hourlyRate * numberOfHoursWorked + " ";
Testing -- console.log(amountOwed)
Testing alert message