A right rectangular prism is packed with cubes of side length fraction 1 over 2 inch. If the prism is packed with 5 cubes along the length 3 cubes along the width and 6 cubes along the height what is the volume of the prism

Fraction 3 and 3 over 4 cubic inches
7 cubic inches
Fraction 11 and 1 over4 cubic inches
24 cubic inches