A homeowner has been offered three alternative mortgage loans to finance the purchase of a $300,000 house. The interest rate on the first alternative is 8 percent for twenty-five years, and the loan requires a 20 percent down payment. The second mortgage loan is also for twenty-five years with an interest rate of 7 percent but requires a down payment of a third of the cost of the house. The third loan also requires a third down but is for 20 years at 6 percent. What are the annual mortgage payments required by each loan?