Peter made a rectangular sandbox for his brother to play in. The sand box measured 4 feet by 5 feet by 1 One-half feet. How much sand will fill the sandbox?
A: 30 ft2
B: 30 ft3
C: 67 ft2
D: 67 ft3
we need to find the volume of the box, so we have to multiply the 4x5x1.5. That equals 30. Since we multiply 3 different quantities of feet together, the unit is ft cubed, so the answer is b 30ft3.
