having trouble dociding whether he wants a 15 -year fixed rafe (6.403%) or a 30 year ficod rato (6.872%) martigage a. What is the monthly payment for both the 15 -and 30 -year mortgages, assuming a fully amortizing loan of equal payments for the life of the tivoitgage? payment? moctidaje peincipal remains? Whe the sieme assumptons as in part a. a. What is tha monthly paymeint for both the 15 - and 30 -yoar mortgogeb, assuming a fathy amortizing loan of equal payments for tha life of the morigage? The monthly payment for the 15-year mortgage is f (Round to the nearest cent)