The formula for the total surface area of a right prism is T. S. A. =ph+2B where p represents the perimeter of the base, h the height of the prism and B the area of the base, I hope this helps.

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Answer: 10

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**Answer:**

D

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You do not have to calculate "e". This is a mathematical constant similar to "pi" and has a value of 2.718281828459045...

Wikpedia has a good article about it.

**Answer:**

Kaia saved $55.15 on a new guitar because it was 75 percent off. The price of the guitar before the discount was $220.60

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