A new gaming computer is in the shape of a cube with an edge length of 6 inches. The computer is sold in a package the shape of a rectangular prism with a base area of 49 square inches and a height of 8 inches.
How much empty space, in cubic inches, remains in the package after the computer is placed in it?
(Hint: find the volume of the package, then the volume of the computer, and find the difference)