Answer:
12.00$ change
Step-by-step explanation:
Change will be $13
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
x=10 and x-7 is the answer
a)2x-7=13
2x=13+7
2x=20
x=20/2
x=10
b)3x+4=25
3x=25-4
3x=21
x=21/3
x=7
i hope it will help you
Answer: -5
$490
$9800 * 1/20 = $490
9800 * 5% = $490
