SOLUTION: A cellular phone company offers a contract for which the cost C; in dollars of t minutes of telephoning is given by C=0.25 (t-600)+70.95, where it is assumed that t≥600 minut
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Question 326617: A cellular phone company offers a contract for which the cost C; in dollars of t minutes of telephoning is given by C=0.25 (t-600)+70.95, where it is assumed that t≥600 minutes. What times will help keep cost between $110.70 and $145.45?
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
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