Question

Frances has 4 square baking dishes. Each pan is 7 inches × 7 inches × 2 inches. Which expression will give her the total volume of all the pans?
A. 7^2 × 2
B. 7 × 2^4
C. (7 × 2 × 2) × 4
D. (7^2 × 2) × 4

Answer 1

Answer: Choice D
(7^2 x 2) x 4

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Each time I use "x", I mean multiply

The volume of one pan is 7 x 7 x 2 which is the same as 7^2 x 2
Multiply this by 4 and we get the total volume to be (7^2 x 2) x 4 which is what choice D shows.