Answer:
108
Step-by-step explanation:
triangles of the sides 3×4=12
5×8=40
4×8=32
3×8=24
add everything
I believe it is A because if you find the volume and area of each shape, you get 72
The mathematical expression is
5x = 1/4
Divide:
x = (1/4)/5 = (1/4)*5 = 5/4 (ANSWER)