Question 262097
Hello, 
Let's have "x" represent the original price of the sweater.
So we can see that:
25% times the cost of the sweater is what is saved, right? Or rewritten as:
.25x but we want the cost after the savings so we'd write it like this:
x-.25x will be the expression needed. 
To put this in reality let's say the sweater cost $90 and see if this expression works. 
$90-.25(90) Do the calculation and it is:
90-22.50 = $67.50 
OK, it works. 
RJ 
Check out a book I wrote at:
www.math-unlock.com