1/2 game at my local casino. Villain is complete unknown who just sat down. I'm sitting with about $250 and straddle for $5. Get 4 callers. I check my 2

2

Flop: 2

7

9

(pot = $28)
I lead out for $16, all folds except cutoff who raises to $45. I call.
Turn: K

(pot = $118)
I check, he bets $45, I call
River: K
What's my play there?