Hand 1: no reads, I have ~$25 behind on the turn

PokerStars No-Limit Hold'em, $0.50 BB (6 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

BB ($61.50)
UTG ($90.65)
MP ($50.65)
CO ($52.35)
Button ($72.75)
Hero ($51.60)

Preflop: Hero is SB with 7, 9.
3 folds, Button calls $0.50, Hero completes, BB checks.

Flop: ($1.50) 6, 8, 5 (3 players)
Hero bets $1.5, BB folds, Button raises to $5, Hero raises to $15, Button calls $10.

Turn: ($31.50) T (2 players)
Hero ...

Hand 2:
PokerStars No-Limit Hold'em, $0.50 BB (5 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

UTG ($60.50)
MP ($49.40)
Button ($49.95)
SB ($124.45)
Hero ($49.75)

Preflop: Hero is BB with T, T.
1 fold, MP raises to $2, 2 folds, Hero calls $1.50.

Flop: ($4.25) J, T, 3 (2 players)
Hero bets $3, MP raises to $11, Hero ...

I raise here, but how much do I raise? A push seems excessive and $30 will only leave $20 behind in a $60 pot.