a. If you borrow $2,100 and agree to repay the loan in four equal annual payments at an interest rate of 10%, what will your payment be? (Do not round intermediate calculations. Round your answer to 2 decimal places.)

b. What will your payment be if you make the first payment on the loan immediately instead of at the end of the first year? (Do not round intermediate calculations. Round your answer to 2 decimal places.)