Hi Kristy,
This $2 note you have is very common. In perfect (UNC) condition it would be worth at most $12-15. Your note looks like it has several folds and probably grades as VF. The book price in that grade is a generous $3.50.
I wouldn't count on selling it for anything above face though, since these are so readily available. I usually carry a small pile of similar looking twos in my wallet just to use as tips...
Hope this helps.