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Mathematics 18 Online
OpenStudy (anonymous):

thomas is looking to connect to a mobile sevice. he decides on two plans. the first is A: flag fall (cents) - 20. cost per minute (cents) - 30. plan B: flag fall (cents) - 50. cost per minute (cents) - 20

OpenStudy (anonymous):

write a function A for the cost of making a call from plan A. write a function B for making a call from plan B.

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