An auto repair shop charged Mrs. Baker $75 per hour, plus $49 for parts to fix her car. The total bill was $274. How many hours of work were done on Mrs. Baker's car?

A. 5 C. 3

B. 4 D. 2

C) 3

Step-by-step explanation:

First we need to subtract the one-time payment for the car parts from the total bill: $274-$49=$225

Now we can find out how many hours of work were done. To do so we set up an equation like this:

(total bill) : (amount per hour) = (How many hours of work)

Plug in your numbers:

$225 : $75 = 3

So there were three hours of work done on Mrs. Bakers's car.