Lauren went shopping for a new pair of pants because of a sale. The price on the tag was $20, but Lauren paid $13 before tax. Find the percent discount.

discount rate= 0.35

Step-by-step explanation:

Giving the following information:

The price on the tag was $20, but Lauren paid $13 before tax.

To calculate the discount rate, we need to use the following formula:

Total discount= total price * ( 1 - discount rate)

13= 20 * (1 - discount rate)

13= 20 - 20discount rate

20discount rate = 7

discount rate= 7 / 20

discount rate= 0.35