Bet the semi-scary turn?

[JohnyB]

I'm on button with 9 7
UTG+1 limps, CO calls, I call, SB folds, BB checks.

FLOP: 10 9 6
BB bets .25, UTG+1 calls, CO calls, I raise to $2.25, BB calls, UTG+1 calls, CO folds.

TURN: 7

Checks to me and I never know what to do here/how much to bet.

Flop raise big enough? How much to bet the turn? Plan for the river?