Please show calculation steps and kindly explain so that I will comprehend. Thank you in advance.

(1) What is your monthly payment? (BAH II Calculator) = (2) If you make regular monthly payments, how long will it take to pay off half of the loan? (i.e, reduce the principle of the loan balance to half) (3) After making regular monthly payments for 10 years, how much will be the loan balance? Next, please compare the mortgage payment based on your chosen mortgage rate with discount points. (4) For the chosen mortgage loan with discount points, how much do you need to pay for the points? (5) What is the NPV of paying the points? (i.e., the PV of savings in monthly payments over the life of the mortgage loan net of the initial payment for points) (6) How long must you stay in the house to make it worthwhile to pay the points to lower down the interest rate, assuming the savings in payments can be reinvested at the same rate? Note: Show calculations to get full credits