Hypothetical Hand: 99 top set

[DavidC]

You're at a tough 2/4 table. In the last 20 hands, 10 of the hands have been three-way on the flop and 7 of those were raised preflop. There's been one big multiway pot, and a multiway pot that got short-handed on the turn. There's been one big limped pot, and it's been folded to the blinds a few times. It's a tough table. Furthermore, there's maybe 1 or 2 uber-donks on the table, 4 players that know the game well (yourself included) and then a few weak-tighties and a few SLPP guys.

Characters:
UTG is a shark, button is a loose passive player.

UTG limps, utg+1 folds, you're in UTG+2 and limp with 99, folded to the button who limps, sb folds, bb checks.

Board: 982 two tone, 4 players, 4 sb.

bb checks, utg bets, You raise, button calls, bb folds, utg 3-bets, hero to act... (11sb)

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Two questions, so far:

1) Should you have raised preflop?

2) What do you do, facing the three-bet?

--Dave.