Please help me thank you

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 you me find the slope! (30 points)

Which of the following is equal to the rational expression when x is not equal to -2 or -6?