A shirt is discounted 40% off the original $50 price. What is the discount amount?

To find the discount amount on a shirt that is originally priced at $50 with a 40% discount, you first need to calculate 40% of the original price.

Start by converting the percentage into decimal form. Forty percent can be written as 0.40. Next, multiply this decimal by the original price:

0.40 × $50 = $20.

Thus, the discount amount is $20. This means that the shirt will cost $30 after applying the discount, making the calculation straightforward.

As a result, the correct answer reflects the computed discount amount for the shirt based on the provided original price and percentage off.