You have to find the volume of the prism right? Well first you have to use the formula to find volume in your shape:
Volume of your prism = lbh (length x base x height)
First:
l = 13in.
b = 11in
h = 5in.
So, multiply those up and the answer is the volume of prism:
13 * 11 * 5 = 715in^3
I hope this helps! Please mark me as brainliest and have a good day/night!<3