The first thing to do in this case is to find the volume of the cube, which will be given by:
V = L ^ 3
Where,
L: sides of the cube.
Substituting we have:
V = (2) ^ 3
V = 8 feet ^ 3
"beans are sold in bags that hold two cubic feet of beans"
Then, to find the number of bags, we make the following division:
n = (8) / (2)
n = 4
Answer:
Beth should buy 4 bags of beans.