trig

Karen earns 43 dollars per week working pt at a bookstore. she makes one dollar more for each book she sells. the amt A, in dollars that Karen earns in a week ifshe sells b books is given in the function A(b) =43 + b how much does she earnin a week if she sells 22 books?

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  1. You know that

    A(b) = 43+b

    so, if b=22, plug that in wherever there is a b:

    A(22) = 43+22

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