How many cubes are needed to fill in the rectangular prism?

8320 cubes can fit into the prism.

Solution:

Convert mixed fraction into improper fraction.

Length of the prism = 20 in

Width of the prism = 2 in

Height of the prism = in

Volume of the prism = length × width × height

                                 = 130 in³

Volume of the prism = 130 in³

Length of the cube = in

Volume of the cube = length × length × length

Volume of the cube = 0.015625 in³

                            = 8320

Number of cubes = 8320

Hence 8320 cubes can fit into the prism.

the answer is c)8

step-by-step explanaction: