Answer:
7x+18
Step-by-step explanation:
The volume of a rectangular prism:

substitute

The volume of a cylinder:

substitute:

Answer: C. The cylinder has the greater volume.
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Answer:
P'(-1, -2)
Step-by-step explanation:
The transformation for 270° CCW rotation is ...
(x, y) ⇒ (y, -x)
Then the image of the given point is ...
P(2, -1) ⇒ P'(-1, -2)
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