tasha has foam blocks stored in a box that measures 3 1/4 ft long by 3 ft wide by 1 ft tall.

each foam block is a cube with 1/4 -ft edge length.

how many blocks can fit into the box?

156

312

624

2496

First, we need to change all mixed number to improper fraction.
3 1/4=13/4
Volume of box=
13/4×3×1=39/4
Volume of one foam block:
1/4×1/4×1/4=1/64. To find the final answer take:
39/4÷1/64
=39/4×64
=624 blocks. As a result, there are total 624 blocks that can fit into the box. Hope it help!