You have $36,000 you would like to invest in two different stocks, Stock Boll and Stock Coff. The buying limit on Stock Coff is $12,900 and you want to spend at least four times as much money on Stock Boll as Stock Coff.
If Stock Boll earns 5% 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.