Respuesta :

The volume of the rectangular prism is 63 cubic ft and the expression for the volume of a rectangular prism is V = 31.5w.

What is a rectangular prism?

It is defined as the six-faced shape, a type of hexahedron in geometry.

It is a three-dimensional shape. It is also called a cuboid.

We have:

Height of the prism h = 4.2 ft

Length of the prism l = 7.5 ft

Width of the prism  = w

The volume of the rectangular prism V = l×w×h = 7.5×w×4.2

V = 31.5w cubic ft

Plug w = 2, we get

V = 63 cubic ft

Thus, the volume of the rectangular prism is 63 cubic ft and the expression for the volume of a rectangular prism is V = 31.5w.

Learn more about the rectangular prism here:

brainly.com/question/21308574

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