Answer:
8
Step-by-step explanation:

C(x) = 5x + 2
This is because at 1 hour it only cost 7 dollars, so it should only have 2 added to the end.
Whts the quiz
I don't understand the quiz
Answer:
for the first one its: y=-3/4x+9
for the second one its: already done
Step-by-step explanation:
Answer:
Both are 72 do you need steps?