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OpenStudy (anonymous):
Media service charges % 20 for a phone and $30/moth for its economy plan. The equation c-30t+20 describe c= 30t+20 describes the total cost, of the operating a media service phone for t months. The total cost for 7 months of service $____
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OpenStudy (saifoo.khan):
i doubt that is $20.
OpenStudy (anonymous):
i meant to say $ 20 for a phone
OpenStudy (anonymous):
30/month
jimthompson5910 (jim_thompson5910):
c= 30t+20 c= 30(7)+20 c= 210+20 c= 230 The total cost for 7 months of service is $230
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