answer: 2 x 8 x 7
Explanation:
how much a container holds is also known as its volume.
to find volume, you simply multiply the height by the length and width.
2 x 8 x 7 = 112 inches cubed
3 x 4 x 8 = 96 inches cubed
since 112 is greater than 96, the prism that measures 2 x 8 x 7 inches has more volume, or space inside them to hold things.
hope this helps! :)