Final answer:
To find the new price after a 20% discount, multiply the original price by 0.20 and subtract the result from the original price.
Step-by-step explanation:
To find the new price after the discount, we need to subtract the discount amount from the original price. In this case, the discount is 20% of the original price.
First, we calculate the discount amount by multiplying the original price by 20%: $80 x 0.20 = $16.
Next, we subtract the discount amount from the original price: $80 - $16 = $64.
Therefore, the new price of the boots after the 20% discount is $64.