Final answer:
To answer the question, we calculate 20% of $18 to find the discount amount ($3.60), then subtract it from the original price to determine Brenda will pay $14.40 for the hat.
Step-by-step explanation:
The question involves calculating a discount on an item. Brenda is buying a hat that is normally priced at $18 but is currently available at a 20% discount. To calculate the discount, we convert 20% to a decimal by dividing by 100, which gives us 0.20. Next, we multiply the original price of the hat by this decimal to find the amount of the discount.
$18 × 0.20 = $3.60
So, Brenda's discount is $3.60. To find the final price Brenda will pay, we subtract the discount from the original price:
$18 - $3.60 = $14.40
Brenda will pay $14.40 for the hat after applying the 20% discount.