CAN YOU PLEASE EXPLAIN AND SHOW HOW TO SOLVE USING THE FINANCIAL CALCULATOR.I HAVE INCLUDED THE ANSWER, I JUST NEED HELP WITH HOW TO SOLVE USING THE FINANCIAL CALCULATOR:

11. FRM. (Term=30 years, Note Rate = 4.00%, Loan Amount = 800,000, Points=2) How much of the 22th payment goes to interest? ANSWER: 2,583.23

13. FRM. (Term=30 years, Note Rate = 4.25%, Loan Amount = 100,000, Points=2) In what month will this loan payoff if you make payments of $575 per month?ANSWER:271

14. Interest Rate Restricted ARM (up or down no more than 2% at each adjustment period). The current interest rate is 7.75%. At the change date, the Index is 2.13 and the margin is 2.25. What is the interest rate are you charged during the next period? 5.75

15. FRM. (Term=30 years, Note Rate = 4.75%, Loan Amount = 800,000, Points=2) After 1 year, how much will Julie have paid into interest? 37,733.55

16. FRM. (Term=30 years, Note Rate = 5.25%, Loan Amount = 800,000, Points=2) What is the balance after the 48th payment