Answer:
A. h=3v/b
Step-by-step explanation:
v=1/3bh
1) divide by b
v/b=1/3h
2) multiply reciprical
3v/b=h
h=3v/b
the answer is x=-25/56
2 4/5x=-1 1/4
14/5x=-5/4
x=-25/56
15
just add 10 plus 5