Account A and Account B both have a principal of $2,000 and an annual interest rate of 3%. No additional deposits or withdrawals are made. Account A earns simple interest. Account B earns interest compounded annually. Compare the amounts in the two accounts after 20 years. Which earns more interest? How much more?
After 20 years, Account (A or B) will have earned $______ more.
(I know the Account that would have earned more is B, so I just need help on how much more Account B would earn)