10 answers
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a)choose a variable to represent the number of coupons.
Let's choose N
b)Write an Algebraic expression that describes the amount Winnie paid for the box of DVDs.
Let C be the amount paid.
C = 56 - 3N
c)use your expression to calculate how much Winnie would pay if she had 5 coupons.
For N = 5,
C = 56 - 15 = 41