Answer:1. ₱637.50discount amount = original price x discount ratediscount amount = ₱750 x 15% = 112.50final price = original price - discount amountfinal price = ₱750 - ₱112.50final price = ₱637.502. 25.68%Discount Rate = (Original Price - Final Price) / Original PriceDiscount Rate = (Php37,000 - Php27,500) / Php37,000Discount Rate = 9,500 / 37,000Discount Rate = 0.25683. ₱33,000Commission = Selling Price x Commission RateCommission = ₱275,000 x 12%Commission = ₱275,000 x 0.12Commission = ₱33,0004. 15.38%Commission Rate = (Commission / Selling Price) x 100%Commission Rate = (Php7,500 / Php48,750) x 100%Commission Rate = 0.1538 x 100%Commission Rate = 15.38%