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Mathematics, 23.09.2019 13:30 Kelbee781
One cell phone plan costs $39.95 per month. the first 500 minutes of usage are free. each minute thereafter cost $.35. write a rule that describe the total monthly cost a function of the number of minutes of usage (over 500 minutes). then find the number of minutes of usage over 500 minutes for a bill of $69.70
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One cell phone plan costs $39.95 per month. the first 500 minutes of usage are free. each minute the...
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