the length of a rectangular foam packing block is 9 in the width is 3 and 1/4 in and the height is 2/3 of an inch what is the volume of the foam block

To find the volume you will multiply the length by the width by the height (V=lwh).

V = 9 x 3 1/4 x 2/3
V = 19 1/2 cubic inches.

To find the volume of any prism, you find the area of the base (length times width in this case) and then multiply it by the height.