I'm pretty sure its B but I would double check before you put the answer in :)
Answer: 9x + 17a
Step-by-step explanation:
2x + 7x + 8a + 9a
2x+7x= 9x
8a+9a= 17a
= 9x +17a
Answer:
Step-by-step explanation:
2(20 + 22) = 2(42) = 84 total books
Answer:
Step-by-step explanation:
If they proportional, it implies
(x+2)/(x-1) = 8/10
Or 10x +20 = 8x-8
Or 2x = -28 or x = -14
