Clover O Donnell
 Problem iu: PRAEUS
 A rectangular prism with dimensions 5 inches by 13 inches by 10 inches was cut to leave a piece as shown in the image.
 13 in
 10 in
 1 in
 5 in
 What is the volume of this piece?
 Do not include units (in?) in your answer.
 copied for free from openupresources.org
 below as a number example: 5.3.1.4 1/2, or 3/2)