Final answer:
To find the sale price, multiply 75% of the original price by 0.75 and subtract it from the original price.
Step-by-step explanation:
To find the sale price, you need to calculate 75% of the original price and subtract it from the original price.
First, find 75% of $20 by multiplying $20 by 0.75. then
75% of $20 is $15.
Substracting $15 from $20, the sale price of the belt is $5.