The discount store is having a big sale. Paper towels are two rolls for $1. Laundry detergent is $3 a box. If Serena buys two rolls of paper towels and two boxes of detergent, how much change will she get from a $20 bill?

Change will be $13

Step-by-step explanation:

Serena bought two rolls of paper towels and two boxes of detergent.

First we have to get the amount of money that Serena bought.

two rolls of paper towels $1

two boxes of detergent $3 each, so $3 x 2 = $6

Total = $1+$6=$7

If She pays with $20, change will be the difference between $20 and how much she spent.

Change = $20-$7=$13

12.00$ change