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A cellular phone company offers...

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) and $80.95, where it is assumed that t> 600 minutes. What times will keep costs between $130.20 and $149.95.

For the cost to be between $130.20 and $149.95, the telephoning time must be between ___ minutes and ____ minutes

For the cost to be between $130.20 and $149.95, the telephoning time must be between ___ minutes and ____ minutes

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