I need help asap thanks

4. (6 marks) (For part a of this question Just show your work in details and no need to find the answer!) You borrow $300,000 with annual interest rate of 6% compounded monthly. The loan amortization is 20 years and you will pay back the loan with equal monthly payments, which includes both the principle and the interest of the loan. a. How much will the monthly payments be? b. If the amount of monthly payment is $2,149.29, how much interest will you pay in 20 years