Which set of coordinates, when paired with (-3, -2) and (-5, -2), result in a square?

Money off coupons have been circulated to 300 households. only 2/5 of these were redeemed (used) in the local supermarket to get a free shampoo. what fraction of coupons were unused? (ps: write how you got the answer)

Pls never taught i’m really confused and i rlly need

An 18% discount on a watch saved a shopper $72. find the price of the watch before the discount