We know that his woodshed is a parallelepiped, and 8' is the depth, 16' is the lenght and 6' is the height.
A cord of wood is 4' high, 4' deep and 96" long.
96" = 8'
We find the volume of his woodshield.
V = h*d*l = 168*6 = 768 cubic feet
Find the volume of a cord
4*4*8 = 128 cubic feet
Do the ratio: 768/128 = 6
His woodshield can hold 6 cords.
For the second question, simply do a multiplication.
If 1 cord is $120, how much are 6?
120*6 = $720
