Shawna loads truck trailers. One trailer can hold 5,000 cubic feet of cargo. The boxes Shawna needs to load in this truck are 5 feet tall, 5 feet wide, and 5 feet long. How many boxes can she fit in the trailer?

First things first is you need to find the volume of the boxes. The volume of a cube is s^3 or length * width * height. 5^3 or 5*5*5 = 125 feet^3. Now all we have to do is divide the volume of the trailer by the volume of the box. 5000 / 125 is 40. 40 boxes will fit in the trailer.