To find the volume of the rectangular prism, we need to know its dimensions (length, width, and height). The edge length of the individual cubes (3/4 inch) can help in determining how many cubes can fit within the prism, but without the specific dimensions of the prism, we cannot calculate its volume directly.
The volume \( V \) of a rectangular prism can be calculated using the formula:
\[ V = \text{length} \times \text{width} \times \text{height} \]
If you provide the dimensions of the rectangular prism, I can help you calculate the volume. Alternatively, if you want to determine the volume based on how many cubes of edge length 3/4 inch fit inside, please share the dimensions of the prism.