need all parts handwritten work plz

2. The purchase price of a house is $400,000. You decide to put 15% down and finance the rest by securing a mortgage at 5.75% interest compounded monthly. a) Calculate the monthly payment that will amortize your debt in 25 years. b) After 8 years much equity do you have to in your home? c) If you re-financed your home at 4% interest for 20 years, what is your new monthly payment