1. Refrigerator DiscountOriginal price = ₱19,000Discount rate = 20%Discount = 19,000 × 0.20 = ₱3,800Sale price = 19,000 − 3,800 = ₱15,200Answer: She saved ₱3,800 and bought the refrigerator for ₱15,200.2. Ms. Santos’ CommissionTotal sales = ₱50,000Commission rate = 15%Commission = 50,000 × 0.15 = ₱7,500Answer: She earned ₱7,500 from the sales.