please it's urgent, provide correct answer!!

15. Suppose a small company takes out a loan of $14,000 at 8.4% interest compounded monthly with monthly payments for 10 years. a) (3 pts.) How much would the scheduled payments on the loan be? b) (3 pts.) If the company decides to pay an extra $50 each month on the loan payments, how long will it take to pay off the loan? c) (3 pts. How much will the company save in payments over the life of the loan by paying $50 extra each month