Mathematics, 21.01.2021 23:10 ethancarter560

The function y = 5.45 + 1.05(x + 7) can be used to determine the cost in dollars for a prepaid cell phone plan of x minutes. What is the rate of change of the cost, in dollars, with respect to the number of minutes purchased?

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The function y = 5.45 + 1.05(x + 7) can be used to determine the cost in dollars for a prepaid cell...