A pair of jeans is on sale for 25% off the original price. Which expression represents the sale price? If the original price of the jeans is $40, evaluate the expression to find the sale price.

The expression that represents the sale price is: $40 - (0.25 * $40).

Simplifying the expression, we have: $40 - ($10) = $30.
Therefore, the sale price of the jeans is $30.