The base layer of a rectangular prism is shown below. Each cube is one cubic foot. The height of the prism is 3 feet. What is the volume (how many total cubes) of the prism?
The base layer of a rectangular prism is shown below. Each cube is one cubic inch. The height of the prism is 5 inches. What is the volume (how many total cubes) of the prism?

Don't forget cubic units.
Don't forget cubic units.
Don't forget cubic units.
Don't forget cubic units.
Don't forget cubic units.
Don't forget cubic units.