It’s prime because none of the other answers work.
It is the first choice. All you have to do is isolate A from 2A so you would divide by 2 and get A=bh/2
10) 7(2m+3)
11) 3(3r-1)
12) 2p(5q+4)
Answer:

Step-by-step explanation:
Given
+ x
Multiply x by
to create a common denominator
=
+ x × 
=
+ 
= 