Can you please help me solve these questions ?

1)[Note: The information presented here applies to questions 1, 2 & 3.] Exene financed the purchase of her new house in Maplewood with a 30-year fixed-rate mortgage. If the annual mortgage interest rate is 5.75% and she borrowed $200,000, what is her scheduled monthly payment?

2) If she makes a payment of $1250 a month, what is the balance remaining on her loan after making payments for 10 years?

3) If she makes a payment of $1250 a month until the loan is paid off, how many months will it take for her to pay off the loan?

4) [Note: The information presented here applies to questions 4, 5 & 6.] Iggy is about to purchase a new condominium in Long Island City and needs to borrow $755,000. If the loan is a 15-year, fully amortizing mortgage offering a 4.75% contract rate, what is his scheduled monthly loan payment?

5) What is the remaining balance on Iggy's loan after making payments for 3 years?

6) What is the total amount of interest paid Iggy pays if the loan is paid off at the end of 3 years?