A sandbox in the shape of a rectangular prism has a
length of 43 inches and a width of 30 inches. Jack
uses bags of sand to fill the sandbox to a depth of 2
inches. Each bag of sand has a volume of 0.5 cubic
foot. What is the minimum number of bags of sand
that must be purchased to fill the sandbox?
1) 14
2) 13
3) 7
4) 4
30