i need help with these homework questions please

QUESTION 3 10 points Save Answer You took out a fully amortizing 30-year fixed rate $300,000 mortgage with a 6% interest rate. After you completed three full years of payments, how much have you paid toward principal? (Round answer to whole dollars and express as positive number QUESTION 4 10 points Save Ante A borrower takes out a 30 year 5/1 Hybrid ARM for $500,000 with an initial interest rate of 4.0. The interest rate will adjust according to the 1 y LIBOR rate, plus a margin of 3%. At the first reset date, 1 yr LIBOR is at 3. What will the borrowers monthly payment be immediately after the first reset? (State the payment as a positive number. (Hound answer to whole dollars and express as positive number) QUESTIONS 10 points A borrower takes out an interest-only loan att for $100,000 with a 10 year term. What is the monthly payment on this loan (Round answer to whole dollars and express as positive number)