Simplify using order of operations(pemdas):
(2^3x6)-3^2

(2^3x6) - 3^2
(8x6) - 9
48 - 9 
39

We need to solve the net volume of the given problem and we have 6 total rectangles with areas. Solving for the volume we have:
Length = 6 yard
width = 4 yard
height = 2 yard
Solving for the volume, we have:
Volume = 6 x 4 x 2
Volume = 48 yard³

The answer is 48 yard³.