C
Because .75 times 9 would give you the price of the books and then you would have to add C, the amount left to get to 20.
A=1/3h(b1-b2). So h=3/(b1-b2)
Question 13 is 14 x is 14
It depends on how long there arms are I think
Answer:
8/7 or 1 1/7
Step-by-step explanation:
3/7 divided by 2/8
Inverse
3/7 times 8/3
8/7 or 1 1/7
Hope this helps :)