Comparing Phone Companies Marissa must decide between one of two companies as her
Chapter 4, Problem 37(choose chapter or problem)
Comparing Phone Companies Marissa must decide between one of two companies as her long-distance phone provider. Company A charges a monthly fee of $7.00 plus $0.06 per minute, while Company B does not have a monthly fee, but charges $0.08 per minute. (a) Find a linear function that relates cost, C, to total minutes on the phone, x, for each company. (b) Determine the number of minutes x for which the bill from Company A will equal the bill from Company B. (c) Over what interval of minutes x will the bill from Company B be less than the bill from Company A?
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