What is the volume, in cubic in, of a rectangular prism with a height of 11 in , a width of 20 in, and a length of 19in?

I'm confused on this could anyone me and show me what i need to do to solve it.

Justin has 750 more than eva and eva has 12 less than justin together they have a total of 63 how much money did

Ineed your ! i was to turn this into pond first thing i gotta do is outline the inside with this plastic how big should i cut the plastic the height: 10 1/2” the length: 40” the width: 12” me !