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Mathematics 15 Online
OpenStudy (anonymous):

Suppose that y = 21(1.07)^x, represents book sales in billions of dollars since 2000. X represents the number of years after 2000. Predict the book sales for 2010 (x = 10), to the nearest billion.

OpenStudy (anonymous):

\[21\times (1.07)^{10}\] and a calculator

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