Answer:

Step-by-step explanation:
(x - 9)(x + 9) would give you x^2 - 81 when you get a plus and minus like that after you factor the middle term is canceled out so the answer would be (x - 9)^2
Answer:
40 its c
Step-by-step explanation:
The Chevrolet will go farther
Because the Chevy has more gas and miles.