To calculate the area just multiply all the sides together so it's 5x3x6 and the answer is 90
$3.75 - cereal
$1.50 - milk
$2.25 - bread
—————————
$7.50
$20.00
- 7.50
—————
$ 12.50
She received $12.50 back
Just dot upward every week because she saves $5 till you hit $70 in 9 more weeks.!!
Your question is incomplete.
If you want me to tell the ratio, its 3:2
