An automotive repair center charges $45 for any part of the first hour of labor, and $25 for any part of each additional hour. which of the following is a correct cost? a. c(t) = 95 for 1 < x ≤ 2 b. c(t) = 95 for 2 < x ≤ 3 c. c(t) = 120 for 2 < x ≤ 3 d. c(t) = 120 for 4 < x ≤ 5

To answer this question, it is easier to make a list of the repair cost based on the hour of labor. The first hour is $45 then after that $25/hour. Then the list would look like 

0-1 h= $45
1-2h= $70     ($45 +1*$25)
2-3h= $95    ($45 +2*$25)
3-4h= $120   ($45 +3*$25)

Looking at the list, the answer should be
B.C(t) = 95 for 2 < x ≤ 3

It is 198,87032,750 + 375 = 33145 so, we take the 6% and we make it a decimal (0.6) and multiply that, then that is your answer