Question

the charge to rent a trailer is $15 for up to 2 hours plus $7 per additional hour or portion of an hour. find the cost to rent a trailer for 3.9 hours, 4 hours, and 7.9 hours. then graph all ordered pairs, (hours, cost), for the function
a what is the cost to rent a trailer for 3.9 hours?
$ 29

b what is the cost to rent a trailer for 4 hours?
$\square

Explanation:

Step1: Determine additional hours

For 4 hours, the first 2 hours cost $15. The additional hours are \( 4 - 2 = 2 \) hours.

Step2: Calculate cost for additional hours

Each additional hour costs $7, so for 2 additional hours, the cost is \( 2\times7 = 14 \).

Step3: Total cost

Add the cost for the first 2 hours and the additional hours: \( 15 + 14 = 29 \).

Answer:

29