Answer:
421.875
Step-by-step explanation:
because the formula of the rectangular prism is l*w*h
L=Length
W=Width
H=Height
L= 7.5
W= 7.5
H=7.5
7.5 x 7.5 x 7.5
7.5 x 7.5 =56.25
56.25 x 7.5 = 421.875 and/or 421.87500
Hope this answers your question.
