The discount store is having a big sale. Paper towels are two rolls for 1 dollar. Disposable diapers are 3 dollars a box. If Serena buys 2 rolls of paper towels and 2 boxes of diapers, how much change will she get from a 20-dollar bill?
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Answer:
Paper towels-2 rolls for 1 dollar
Disposable diapers- $3 for a box
Serena buys - 2 rolls of paper towels and 2 boxes of diapers
Total cost = ($2 + $3 × 2)
= $8
Dolllar bill -20
Total cost - 8 (20 -8)
So change she gets is $12.
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