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Algebra
Question

Suppose that the monthly cost of a long-distance p...

Suppose that the monthly cost of a long-distance phone plan (in dollars) is a linear function of the total calling time (in minutes). When graphed, the function gives a line with a slope of \( 0.11 \) . See the figure below. The monthly cost for \( 41 \) minutes of calls is \( \$ 18.87 . \) What is the monthly cost for \( 50 \) minutes of calls? 

Answer

19.86

Solution
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