Mathematics, 16.04.2020 19:17 harleeGirl

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Speed Cell Wireless offers a plan of $40 for the first 400 minutes, and an additional $0.50 for every minute over 400. Let t represent the total talk time in minutes. Write a piecewise-defined function to represent the cost C(t).

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Speed Cell Wireless offers a plan of $40 for the first 400 minutes, and an additional $0.50...