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Mathematics, 27.03.2021 06:00 iiwolfiexuni

11. A 6-min. phone call between two cities costs $4.40, whereas a 10-min. call costs $7.60. Find the basic
charge for the first 3-min. period and the rate for
each additional minute.

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11. A 6-min. phone call between two cities costs $4.40, whereas a 10-min. call costs $7.60. Find th...

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