If a 20% discount is applied to a $50 purchase, what is the final price?

To find the final price after a 20% discount is applied to a $50 purchase, start by calculating the discount amount. A 20% discount means you need to find 20% of $50.

Here's how to calculate that:

1. Convert the percentage to a decimal by dividing by 100:

20% = 20/100 = 0.20

2. Multiply the original price by the decimal:

Discount = $50 × 0.20 = $10

Next, subtract the discount from the original price to find the final price:

Final Price = Original Price - Discount

Final Price = $50 - $10 = $40

Therefore, the final price after a 20% discount on a $50 purchase is $40. This corresponds to the option stating $40, which reflects the correct application of the discount calculation.