20 hot 9 year olds.
3, duh. (My ex's 9 year old little sister told me this joke, and followed is up with: "and YOU'RE the math guy!" >< Burned.)
Echosystems. From my 9 year-old.
I've been using a discount card, but I can only ever get 20% off
Ask him/her to pronounce unionized
20 9 year olds ( ) Sorry