A cleaning service charges an hourly rate plus a flat fee of $15 for supplies. Phillipe uses the service for 3.5 hours for his spring cleaning, and his total is $232. How can he correctly determine the hourly rate? Add the supply fee, $15, to the total cost, $232. Then, divide the sum by the number of hours, 3.5.
Divide the total cost, $232, by the number of hours, 3.5. Then, add the flat fee, $15, to the quotient.
Divide the total cost, $232, by the number of hours, 3.5. Then, subtract the flat fee, $15, from the quotient.
Subtract the supply fee, $15, from the total cost, $232. Then, divide the difference by the number of hours, 3.5.