Mathematics, 05.10.2019 19:30 Dianar723
Calls from a call box are charged per minute at one rate for the five minutes, then a different rate for each additional minute. if a 7 minute call costs $4.25 and a 12 minute call costs $5.50, find each rate.
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Calls from a call box are charged per minute at one rate for the five minutes, then a different rate...
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