Three hands similiar theme. Kinda long

[Psycho21]

3/6 NL. Ive been running the game over playing real loose real aggressive and have over 2k.

1st Hand. I raise to 3x w/ 99 in middle position and get a caller behind me and from the blinds.
Flop 292
Player from the blind with about 800 bets the pot. I call. Plyer behind folds.
Turn K suits not relevant.
BB bets the pot again. I reraised 3x. Is this how you play in this spot?

2nd Hand
Somewhat tight player with 500 open raises 4x on the puck. I call with A2s. Heads up
Flop Kh4x7h I flop the heart draw.
Button bets 12. I call.
Turn xh
Button bets 25 I call
River is a blank
I lead for the pot.
Good Bad?

3rd Hand
Same tight player w/600 raises 3x from the button and I call from sb with 43s
Flop 5hJx2x
He bets the pot, I call
Turn 8h
He bets 3/4 the pot I call
River Ax
I c/r but if he had a big pair other than AA im getting no action. So I once again led for the pot.
What do you think?