Write an inequality that represents the real-world problem. then select all that apply

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.

In the polynomial below, what number should replace the question mark to produce a difference of squares? x2 + ? x - 36

Hi, can anyone show me how to do this problem? 100 points for this. in advance