Answer:
75 cubit feet
Explanation:
Volume of a square based pyramid = BH/3
B is the base area = Length * length
B = 5 * 5
B = 25 sq. feet
H is the height of the pyramid = 9feet
Substitute
Volume = 25*9/3
Volume of the pyramid = 25 * 3
Volume of the pyramid = 75 cubit feet