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Mathematics, 10.04.2020 03:18 iiChantxx
Jane has a pre-paid cell phone with Splint. She can't remember the exact costs, but her plan has a monthly fee and a charge for each minute of calling time. In June she used 100 minutes and the cost was $54.00. In July she used 660 minutes and the cost was $138.00.
Express the monthly cost C as a function of x, the number of minutes of calling time she used.
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Jane has a pre-paid cell phone with Splint. She can't remember the exact costs, but her plan has a m...
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