Mathematics
Mathematics, 21.08.2019 09:30, irenecupcake4348

Suppose a 15-minute call costs $5.26, and a 30-minute call costs $10.24. find a formula relating time (in minutes) and cost (in dollars).
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Suppose a 15-minute call costs $5.26, and a 30-minute call costs $10.24. find a formula relating tim...

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