Mathematics, 30.06.2021 16:30, lol6998

A long distance calling plan charges 99 cents per minute for any call not exceeding 20 minutes in length and 7 cents for each additional minute. Determine how much a call lasting 23, 36, and 58 minutes would cost.

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A long distance calling plan charges 99 cents per minute for any call not exceeding 20 minutes in le...