You have $37,000 you would like to invest in two different stocks, Stock Boll and Stock Coff. The buying limit on Stock Coff is $13,800 and you want to spend at least two times as much money on Stock Boll as Stock Coff.

If Stock Boll earns 9% annual interest and Stock Coff earns 4% annual interest, how much money (in dollars) should you invest in each stock to maximize your annual interest earned? What is the maximum annual interest (in dollars)?

You will earn a maximum total annual interest of $ if you invest $ in Stock Boll and $ in Stock Coff.