The answer is A. 2a/b=h
Explanation:
a=1/2bh
2a=1*bh (on the right side 2 was divided so when we take it to the other side it will be multiplied)
2a/b=h (same goes for B, on right side it was in multiplication but on the other side it will be divided)
so your answer will be 2a/b=h
