Answer:
Step-by-step explanation
cross-section is 10 inches by 16 inches
area = 10*16 = 160 square inches
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Answer:
Im not sure about Q1 but I'll help with Q2
9 =

8 =
![\sqrt[3]{512}](https://tex.z-dn.net/?f=%20%5Csqrt%5B3%5D%7B512%7D%20)
14 =

2 =
![\sqrt[3]{8}](https://tex.z-dn.net/?f=%20%5Csqrt%5B3%5D%7B8%7D%20)
4 =

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%= (exact-appropriate)/exact
so 279.45-250.55 divided by 279.45
basically .103417 nearest tenth is 10.3%
i believe