Directions. Write your answers together with your solutions here. Box your final answer with correct and complete sign. 20 points Solve the following problems: 1. Raffy receives Php 15,000 a month corresponding to a sale of Php 20,000 worth of goods. Furthermore, he receives an additional 5% commission for all sales beyond his monthly quota but not greater than Php 40,000. An additional 6% commission is for sales beyond Php 40,090. If his sales are Php 65,000 for the month, how much is his salary for the month? 2. Find the maturity value and interest if Jacob invested his money Php 150,090 at 10% annually for 8 years. 3. Anya, a real-estate agent, receives a 5% commission of Php 200,000 for selling a house. What was the price of the house? 4. Tet borrowed Php 150,000 from a bank with 7.5% effective rate of interest. What is the amount to be paid after 5 years? 5. Sofia obtained a house of 24-year mortgage for Php2,450,000. If his monthly payment is Php 15,500, how much is the total interest? 6. Ms. Lejero purchased a house worth Php 3,800,000. If his monthly payment is Php 25,000 , how much is the total interest if it is payable for 20 years? 7. Andrei receives 15% commission on the gadgets she sells. If she was able to sell a cellphone for Php 8,000, a laptop for Php 22,000, and a camera for Php 1,800, how much does Andrei make in commission