Illa has a cell phone plan. She tells you that after 8 months, she has paid a total of $760 and after 10 nonths, she has paid a total of $840. She does not remember the cost of the phone. et's start by converting these to coordinates (m, C) where the inputs, m, are the number of months ince Ella bought the phone, and the outputs, C, represent the total cost that Ella has paid after that many months. Coordinate for eight months: Coordinate for ten months:

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