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Mathematics, 03.07.2019 10:30 Lianabel0517

Amy earns 56 dollars each week working part-time at a book store. she earn one additional dollar for each book that she sells. let a be the amount (in dollars ) that amy earns in a week if she sells b books write an equation relating a to b. then use this equation to find the amount of money amy earns if she sells 21 books .

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