Which of the following is a function? A. (-4,5) (3,-3) (4,1) (9,2) B. (-4,3) (3,2) (-4,-5) (9,0)

Melanie is buying a bathing suit that costs 39.99. she is given a discount at the cash register of $6.00 when she scratched 15% off on a game piece for a store promotion. what will the sale price of melanie’s bathing suit be?

Hi i’m not sure how to do question 20 if u could explain how to do it that’d b great

Can someone me find the original price? the discount is 5% and the sale price is $68.40