Question

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Answer 1

11. 28*21 = 588 cubic feet

12. 16*9/3 = 48 pi ~150.72 ~ 151 cubic inches

13. 9*9*14/3 = 378 cubic yards

Explanation:

Answer 2

11. 28*21 = 588 cubic feet

12. 16*9/3 = 48 pi ~150.72 ~ 151 cubic inches

13. 9*9*14/3 = 378 cubic yards