Hello, I’m having trouble with this math problem and would appreciate it if I’d get help

Step-by-step explanation:

we have the equation

19. cost when x=250

dollars

20. what does the slope means in the context

it means the regular increase of the cost, in other words, how much is the cost increasing per mile driven

21. what does the y-intercept means in the context

it means the starting cost of only renting the car one day, not even driving it, it's the lowest cost you can get