Question of the Week, #1 -- EXTRA CREDIT!!!!

THE SCOOP: The Question of the Week is a contest that will last the rest of the year. It is designed to give you a bit of a challenge in using math, and if you are successful in answering a question, you will receive prizes and your name will go into the QOW Hall of Fame! This week's prize is 5 points of extra credit, or half a homework assignment.

QUESTION:
Numismatics is the study or collection of currency (coins, paper money, etc.). A building that produces coins is called a mint. In 2009, the U.S. Mint in Philadelphia minted 39,840,000 nickels. What is the value of all of these coins put together? Submit your answer as a comment and Mr. B will announce the winners at the end of the week! Good luck!