Mathematics, 11.10.2021 14:00 carolelai08

Suppose that the credit remaining on a phone card (in dollars) is a linear function of the total calling time in minutes). When graphed, the function gives a line with a slope of -0.14. See the figure below.
There is $29.06 in credit remaining on the card after 29 minutes of calls. How much credit was there after 16 minutes of calls?

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Suppose that the credit remaining on a phone card (in dollars) is a linear function of the total cal...

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