Answer:
3.0
Step-by-step explanation:
To understand why there is a blank decimal, we have to understand that when you add multiply or subtract with a float (in python), the result will also be a decimal, even you use a blank decimal in the equation. A circumstance where the output would just plain 3, you would have to put in the following:
>>>int(moneyDue)
To insure it will output an int. However, it does not use that line of code, thus proving the answer is 3.0.
hope this helped :D