Please show work for this problem so I know how you got the answers, Thanks!

1) A mortgage loan of $1,875,000 has just been made on a property valued at $2,500,000. The interest rate is 6% with 2 points. The loan will require level monthly payments to amortize the principal over 25 years. The mortgage also carries a 1% prepayment penalty.

a. What is the indicated loan-to-value ratio?

b. What is the monthly mortgage payment?

c. How much interest is paid in the fifth year?

d. If the mortgage is paid off after 7 years what will the effective yield be?