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The followingequation describes the Nike’s monthly demand for visits to the health club: Qd= 30 – 5P, where Qd is visits per month and P is dollar per visit.
M! I. b- E( P5 b+ W
1 f d, ~& f5 a, _- D A.18* t" Z# G, X3 ?1 @4 h/ [4 @ F
1 ]# N! Q4 O z B.101 p1 V9 N' D6 H2 M
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发表于 2015-12-22 13:46:18
发表于 2019-3-31 12:23:51
