Sorry I do not know. Sorry to let you down
Answer:
C they have equal x-intercepts
Step-by-step explanation:
There are multiple equations that would fit this description, but one of them could be something like this:

Hope that helped =)
Answer:
8$
Step-by-step explanation:
Because the first car wash does not cause the price to to down, but the ones after it do, you need onltake away 7 dollars of the price because it has only been discounted 7 times. Therefore 15-7=8 so 8 dollars is the answer.