A rectangular prism has a length of 12 in., a width of 5 in., and a height of 4 1/4 in. The prism is filled with cubes that have edge lengths of 1/4 in. How many cubes are needed to fill the rectangul

A rectangular prism has a length of 12 in., a width of 5 in., and a height of 4 1/4 in. The prism is filled with cubes that have edge lengths of 1/4 in. How many cubes are needed to fill the rectangular prism? Enter your answer in the box. To fill the rectangular prism____cubes are needed.