Mathematics, 25.06.2019 07:30 parosil

Astore finds that the number of shirts sold increases each week. in the first week, only 15 shirts were sold. in the next week, 22 shirts were sold and in the third week 29 shirts were sold. the number of shirts sold each week represents an arithnetic sequence. what is the explicit rule for the arithmetic seuquence that defines the number of shirts sold in week n?

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