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The formula for the volume of a rectangular pyramid is:
Volume = (1/3) * base area * height
Given:
Height = 75 in
Width = 111 in
Length = 111 in
Base Area = Width * Length = 111 * 111 = 12321 sq in
Volume = (1/3) * 12321 * 75
Volume = 411,025 in^3
Therefore, the correct answer is:
b. 308,025 in.^3