Please answer the 1 question in the picture, thanks

Omar is going on a road trip! the car rental company offers him two types of cars. each car has a fixed price, but he also needs to consider the cost of fuel. the first car costs $90 to rent, and because of its fuel consumption rate, there's an additional cost of s0.50 per kilometer driven.

Can someone me and do the problem plz so i can understand it more better

A. 127 cm^2 b. 144.5 cm^2 c. 172 cm^2 d. 50 cm^2