Question: 87. Pasquale's cell phone plan charges him monthly using the relation ) = 0.25x + 20, ', where y is the total monthly bill and

87. Pasquale's cell phone plan charges him
87. Pasquale's cell phone plan charges him monthly using the relation ) = 0.25x + 20, ', where y is the total monthly bill and x is the number of minutes he used for the month. a) Which variable is independent and which is dependent? b) How do you know the relation is linear? c) Determine the rate of change in his monthly bill. d) What does the rate of change mean? e) How does the rate of change relate to the equation? f) When will his cell phone bill reach $100

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