Question

a car rental costs $30 per day plus $0.12 per mile driven. write a function for the total cost C of a 2 day trip is m miles are driven. what is the cost if 150 miles are driven?

Answer 1

For a 2-day trip the daily cost is 2·$30 = $60. With m miles at $0.12/mile the total cost is

C(m) = 60 + 0.12m.

If m = 150, C(150) = 60 + 0.12·150 = 60 + 18 = $78.