This is the 9th time I got a wrong answer from Chegg. If you are not a professional or an instructor please do not answer this question. If you are definite that you will solve the rest of this problem and get a 100%, please answer this. I need B C and D please use the proper formula thank you.

This problem is a complex financial problem that requires several skills, perhaps some from previous sections. Clark and Lana take a 30-year home mortgage of $128,000 at 7.6%, compounded monthly. They make their regular monthly payments for 5 years, then decide to pay $1100 per month. (a) Find their regular monthly payment. (Round your answer to the nearest cent.) $ 903.78 (b) Find the unpaid balance when they begin paying the $1100. (Round your answer to the nearest cent.) $ (c) How many payments of $1100 will it take to pay off the loan? Give the answer correct to two decimal places. x monthly payments (d) Use your answer to part (c) to find how much interest they save by paying the loan this way. (Round your answer to the nearest cent.)