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Mathematics 9 Online
OpenStudy (anonymous):

Rap/hip-hop music accounted for of the total sales of recorded music in , and of the total sales of recorded music in . Find the average rate of change of the percentage of sales of rap/hip-hop music from to . Round to the nearest hundredth of a percent. Note that the percentage sign is already given in the answer, so you do not need to enter it.

OpenStudy (anonymous):

honestly i have done this almost 20 times, and it keeps telling me it is wrong.

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