Please help me and show me how to correctly solve this, thank you.

A partially amortizing mortgage is made for $60,000 for a term of 10 years. The borrower and lender agree that a balance of $20,000 will remain and be repaid as a lump sum at that time. Required: a. If the interest rate is 7 percent, what must monthly payments be over the 10-year period? b. If the borrower chooses to repay the loan after five years instead of at the end of year 10 , what must the loan balance be? Complete this question by entering your answers in the tabs below. If the interest rate is 7 percent, what must monthly payments be over the 10 -year period? (Do not round intermediate calculations. Round your final answer to 2 decimal places.) A partially amortizing mortgage is made for $60,000 for a term of 10 years. The borrower and lender agree that a balance of $20,000 will remain and be repaid as a lump sum at that time. Required: a. If the interest rate is 7 percent, what must monthly payments be over the 10 -year period? b. If the borrower chooses to repay the loan after five years instead of at the end of year 10 , what must the loan balance be? Complete this question by entering your answers in the tabs below. If the borrower chooses to repay the loan after five years instead of at the end of year 10 , what must the loan balance be? (Do not round intermediate calculations. Round your final answer to 2 decimal places.)