You have 2 different savings accounts. For Account​ A, the simple interest earned after 18 months is ​$12.38. For Account​ B, the simple interest earned after 33 months is ​$24.20. If the interest rate is 3.3​% for Account A and 2.2​% for Account​ B, how much is the principal in each​ account? Which account earned you the most interest in the first​ month? Explain your answer.