Mathematics, 18.12.2020 01:00, raquelwilliams6912

A sandcastle can be modeled with four 6-inch-tall square prisms, one on top of the other, as shown in the figure below. The base of the bottom prism has a side length of 30 inches, and the base of each of the other three prisms has a side length 7 inches less than the side length of the base of the prism below it. What is the volume of the sandcastle?

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A sandcastle can be modeled with four 6-inch-tall square prisms, one on top of the other, as shown i...