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Mathematics 17 Online
OpenStudy (elise_a18):

The price of a book can be modeled by the equation below, where P = the price of the book, 20 is the printing charge, 0.5 is the charge per page, and x = the number of pages. : $62.10 = (20 + 0.5x) + 0.15(20 + 0.5x)

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