On its website, the Yellow Taxi company gives this expression, which represents the average cost per mile to travel x miles in one of its taxis: $3z + $15
Part A
Knowing that x represents the number of miles traveled, what does the numerator represent?

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.

it would be c. 25 units