different rules?

Thanks for the response..
I know what the rules for 6 deck games are in my surrounding casinos, but how do I know if they are the same or different for double deck games?
Also, anyone know what the different casino rules are for when they bump the minimum bet up on the tables? I am interested in the minimum $10 dd blackjack. The last time I was in a casino, I walked by the table and it was $10 and when I left I noticed it was minimum bet $15..
Thanks