15. Five years ago, you saved $5,000 in bank A that pays a compounding interest rate. You also saved $5,000 in bank B that pays a simple interest rate. Both accounts have $8,000 now. How much will you have in the two accounts at the end of year 5? The account balance in bank A will be $11,000. The account balance in bank B will be $11,000. The account balance in bank A will be $12,800. The account balance in bank B will be $11,000. The account balance in bank A will be $11,000. The account balance in bank B will be $12,800