$36.16 assuming it was issued 10 years ago (april 2000), matures in 2030 and is an EE bond. You can always find out the value of a bond by going to the calculator at www.treasurydirect.gov
What Is A 10 Year Old 50 Dollar US Savings Bond Worth?
It depends on what series of bond it is. Most bonds are worth face value, and then mature with time, ChaCha