Answer:
She save $3.60
Step-by-step explanation:
Given: Jennifer uses a coupon that gives you 20% off your order if the total was $18.
Now we need to find 20% of $18.
= [tex]\frac{20}{100} .18[/tex]
= [tex]\frac{360}{100}[/tex]
= $3.60
So, she save $3.60
