please please help!!!

A young couple buying their first home borrow 560,000 for 30 vears at 7,8%, compounded monthly, and make payments of 5575.90 . After 4 years, they are able to make a one-time paychent of $2,000 along with their 48 th payment: (o) Find the unoaid balance immediately after they pay the extra $2,000 and their 485 parment. (Round your answer to the nearest cent.) (b) How many regular parments of $575.50 will amortize the unpald balance from part (a)? Give the answer to one decimal point. payments (c) How much wil the remaining debt be after the number of full payment periods in put (b) is made? (Round your anserer to the nearest cent) How much extra must be included with the last full parment to pay off the debt? (Pound your answer to the neareat cent.) (d) How much will the couple pay over the life of the loan by paring the extra $2,000 ? (Round your answer to the nearest cent) (6) How much will the couple ave aver the ife of the lobn by paying the extro \$2,000? (Use your answer from part (b). Round your answer to the neartst cent.)