Answer:
20%
Step-by-step explanation:
A pair of jeans cost $45 before the sale.
The sale is taking $9 off of the original price.
Then
$45 - 100%
$9 - x%
Write a proportion:

Cross multiply:

It is increase, because 15 is less than 18. Other way around, if the question is 18 to 15 yards, then that would be decrease, because it is getting smaller.
Answer:
There is a site where you can look these up, Try to look it up on the internet heres some sites, For Homework: slader
math -
way
explanation:
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