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When making a book cover, Anwar uses enough material to cover the front, back, and spine of the book. He adds an 20 in.² more to the surface area to allow for overlap. How many square inches of paper will Anwar use to make a book cover for a book 11 inches long, 8 inches wide, and 1 inch high?

Pls help.

User Bzg
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I confused ! I don't get what your trying to say please explain better !
User Rick Mogstad
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