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Author: Terry and NCTM's WLME
Description: active problem Algebra, difficulty level 2. Using data about buying habits of music lovers from 1990 and 1996, predict the results for 2000 and compare those predictions to the actual data.
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Problem page: http://mathforum.org/librarypow/puzzles/index2.ehtml?puzzle=2008
Solution page: Problem #2008

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