Practice: Find the sale price using (a) percent off and (b) percent paid method.The regular selling price of a pair of men’s jeans is $37.99. The markdown rate is 20%.The regular selling price of a computer desk is $329.99. The markdown rate is 30%.

To find the sale price using the percent off method, you need to multiply the regular selling price by the markdown rate.

(a) For the pair of men's jeans:
Regular Selling Price: $37.99
Markdown Rate: 20% (0.20)

Sale Price = Regular Selling Price - (Markdown Rate * Regular Selling Price)
Sale Price = $37.99 - (0.20 * $37.99)
Sale Price = $37.99 - $7.598
Sale Price = $30.392

Therefore, the sale price of the pair of men's jeans would be $30.392.

For the computer desk:
Regular Selling Price: $329.99
Markdown Rate: 30% (0.30)

Sale Price = Regular Selling Price - (Markdown Rate * Regular Selling Price)
Sale Price = $329.99 - (0.30 * $329.99)
Sale Price = $329.99 - $98.997
Sale Price = $231.993

Therefore, the sale price of the computer desk would be $231.993.

(b) To find the sale price using the percent paid method, you need to subtract the discount amount from the regular selling price.

For the pair of men's jeans:
Regular Selling Price: $37.99
Discount Amount = Markdown Rate * Regular Selling Price
Discount Amount = 0.20 * $37.99
Discount Amount = $7.598

Sale Price = Regular Selling Price - Discount Amount
Sale Price = $37.99 - $7.598
Sale Price = $30.392

Therefore, the sale price of the pair of men's jeans would be $30.392.

For the computer desk:
Regular Selling Price: $329.99
Discount Amount = Markdown Rate * Regular Selling Price
Discount Amount = 0.30 * $329.99
Discount Amount = $98.997

Sale Price = Regular Selling Price - Discount Amount
Sale Price = $329.99 - $98.997
Sale Price = $231.993

Therefore, the sale price of the computer desk would be $231.993.

Both the percent off method and the percent paid method yield the same sale prices.