Fun Mix cereal comes in two types of boxes. The first box is shaped like a rectangular prism. It is 10 inches long, 5 inches wide, and 12 inches tall. The second box is shaped like a cube with a side length of 9 inches. Which cereal box has a greater volume?

10 * 5 * 12 = volume of first

9^3 = volume of second

Calculate and compare.