Mathematics, 08.09.2021 01:00, elizavlsc4

Before beginning voice lessons, Andy already knew how to sing 28 pieces, and he expects to learn 2 new pieces during each week of lessons. How many weeks of lessons will Andy
need before he will be able to sing a total of 32 pieces?

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Before beginning voice lessons, Andy already knew how to sing 28 pieces, and he expects to learn 2...