The cost to repair Linda's car is $500, including parts and labor. The cost of parts is $140. If the cost of labor is $40 per hour, how many hours of labor did the repairs take?
A.
20
B.
1
C.
8
D.
9
To find the amount of hours, we first have to subtract the initial fee from the total fee: 500-140=360 Because it’s $40 an hour: 360/40=9 Option D. : 9 hours