Using a button to hide objects

I don’t know if this has ever been asked, so i’ll ask anyway. I’m creating a “deal or no deal” game. Would anyone know how to use a button (one of the cases) to make the button (case) and the corresponding a graphic symbol (cash amount) hide?
What would the action script for that be?
If you need to see the fla, let me know. It’s too big to post.