Answer:Birthday CakeDiscount: 144Sale Price: 656Medicine Kit with Complete SetOringinal Price: Discount: Wrist WatchDiscount Rate: 0695%Sale Price: 3,350LaptopOriginal Price: Discount: Study TableDiscount Rate: Sale Price: Step-by-step explanation:Birthday Cake:800 x .18 = 144 (Discount)800 - 144 = 656 (Sale Price)or 100%-18%= 82%800 x .82 = 656 (Sale Price)Medicine Kit with Complete Set Wrist Watch