An item is regularly priced at $20. it is on sale for 55%off the regular price. What is the sale price?

To find the sale price of an item that is on sale for a certain percentage off the regular price, you need to calculate the discount amount and subtract it from the regular price.

Step 1: Calculate the discount amount.
Discount = (Percentage off / 100) * Regular Price
Discount = (55 / 100) * $20
Discount = $11

Step 2: Subtract the discount amount from the regular price.
Sale Price = Regular Price - Discount
Sale Price = $20 - $11
Sale Price = $9

Therefore, the sale price of the item is $9.

20 - (.55 * 20) = .45 * 20 = ___