Table 1.10 on page 10 gives the annual sales (in millions)
Chapter , Problem 1.2.5(choose chapter or problem)
Table 1.10 on page 10 gives the annual sales (in millions) of smartphones and feature phones. What was the average rate of change of annual sales of each of them between (a) 2010 and 2012? (b) 2012 and 2013? (c) Interpret these results in terms of sales.
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