Suzanne bought a sweater at the sale price of 25.the original cost of the sweater was 40.what percent represents the discount that suzane recived

To do this, you need to work out the percentage value 15 is (40-25)
You divide 100 by 40 to find out the percentage of 100 one is.

100 / 40 = 2.5,
Then multiply 15 by 2.5 to work out the percentage change:
15 * 2.5 = 37.5.

The percent discount is 37.5%

Hope this helps!