A sweater originally priced at $80 was marked down by 25%. What was the sale price of the sweater?

To determine the sale price of the sweater after the markdown, you first need to calculate the amount of the discount. The original price of the sweater is $80, and it has been marked down by 25%.

To find the discount amount, you multiply the original price by the percentage discount:

[ \text{Discount} = \text{Original Price} \times \text{Discount Rate} ] [ \text{Discount} = 80 \times 0.25 = 20 ]

Now that we have the discount amount of $20, you subtract this from the original price to find the sale price:

[ \text{Sale Price} = \text{Original Price} - \text{Discount} ] [ \text{Sale Price} = 80 - 20 = 60 ]

Thus, the sale price of the sweater is $60. This aligns perfectly with the choice provided. The calculations show the clear financial impact of a discount on a retail item, highlighting how a percentage reduction functions in a practical scenario.