1. A certain brand of mobile phone is being sold at 15% discount. If it cost P2 200.00. What is the discount? What is the sale price? 2. A digicam with a regular price of P12 795.00 is marked to sell at 30% off. What is the discount? 3. During a sale, a refrigerator marked 16 500.00 was bought at 14 850.00 only. What is the rate of discount? 4. After a discount of32.50, a skirt cost 97.50. What was the original price of the shoes? 5. A pair of shoes costs 1 250.00 including the tax. The tax rate is 5%. How much was the tax ?