Mathematics, 07.08.2019 04:20, lovebug3563

7. cell phone plan a costs $30 per month for unlimited calling plus $0.25 per gb of data. cell phone plan b
costs $40 per month for unlimited calling plus $0.15 per gb of data.
a) write a linear model that represents the monthly cost of each plan if the customer uses g gb of data.
b) after how many gb of data will the plans cost the same?

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7. cell phone plan a costs $30 per month for unlimited calling plus $0.25 per gb of data. cell phone...