Answer:
Discount price of T-shirt is $14.40
Regular price of hat is $22.50
Step-by-step explanation:
The regular price, without a discount, of the T-shirt is $18. Since the store offers a discount of 20%, we must remove 20% of the price.
100%-20%=80%. So, the discount price is 80% of the regular price.
18 × 80% = 14.4
So, the discount price of the T-shirt is $14.40.
The hat, on a discount of 20%, costs $18. To find the regular price, we must multiply it by the reciprocal of 80%, which is 100/80, or 1.25.
1.25 × 18 = 22.5
So, the regular price of the hat is $22.50.
