HELP PLZZZS EASY 10 points *easy*

Hi my sisters and brothers can tell me the answer because i don’t understand the question

Angela is buying a dress that is on sale for 20% off. if the original price of the dress is $40.00, how much money is angela saving on the dress? a. $0.80 b. $3.20 c. $32.00 d. $8.00

1. find the area of the unshaded square 2. find the area of the large square 3. what is the area of the frame represented by the shaded region show