Dr. George is ready to by a new iphone and has two different carriers he can go with. Cell 4 U can be represented by the function c (x) = 10x+75. Data House can be represented by the function c (x) = 15x+50. X represents the amount of data used. Accessories will cost $135 Dr. George usually uses 4 gigs of data a month.
1. How much will the phone cost at Cell 4U?
2. How much will the phone cost at Data House?
3. Which company should Dr. George go with? Justify your answer.
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