Asweater was on sale for 40% off the regular price. ella saved $20 by buying the sweater on sale. what was the regular price of the sweater?

The sweater has a discount with is 40% of the regular price.
She saved 20 dollars on  the sweater that she bought.
Let's solve for the original price of the sweater then,
=> 20 dollars = 40%.
Let's look for the 60%.
=> 20 / 4 = 5 dollars is the 10% of the sweater's original price.
=> 5 dollars * 10 = 50 dollars
=> Thus the original price of the sweater is 50 dollars.