Final answer:
The expressions to calculate the price of a Thanksgiving item after a 20% clearance sale discount are T - 0.20T and 0.80T, representing the subtraction of the discount from the original price and the remaining 80% of the price, respectively.
Step-by-step explanation:
When given a discount, the price of an item is reduced by the percentage of the discount. For a 20% discount, the new price is the original price minus 20% of the original price. In algebraic terms, the original price is represented as T. Therefore, the new price after a 20% discount is T minus 20% of T, which is calculated as T - 0.20T.
Another way to express this is to find what percentage remains after the discount is applied. If an item is at 20% off, the customer is paying 100% - 20%, which is 80% of the original price. In decimal form, 80% is 0.80, so the price after discount is 0.80T.
Therefore, the two expressions that can be used to find the price of a Thanksgiving item, T, after a 20% discount are: