A cellular service provider charged a customer $40 for 150 minutes of airtime. The same provider charged another customer $55

Question

A cellular service provider charged a customer $40 for 150 minutes of airtime. The same provider charged another customer $55 for 300 minutes of airtime. What linear model represents the total cost, C, as a function of t, the amount of airtime in minutes?

Kunduz · Accepted Answer

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