Problem 2 [25 points]: You buy a house of $450,000 today. You put a down payment of 20% and borrow a fixed-rate mortgage of $360,000 with interest rate of 4% and 15 years. After 3 years, your house is appreciated to the value of $550,000 and market interest rate goes up to 6.5%. How much money will you make in book after 3 years?