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Mathematics, 03.03.2021 19:40 skatingflower

For her phone service, Christine pays a monthly fee of $20, and she pays an additional $0.05 per minute of use. The least she has been charged in a month is $80.60. What are the possible numbers of minutes she has used her phone in a month? Use m for the number of minutes, and solve your inequality for m.

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For her phone service, Christine pays a monthly fee of $20, and she pays an additional $0.05 per min...
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