Hold'em table

4d2s is the worst starting hand in a 3-way pot, with poor playability and dominated equity; folding avoids investing chips out of position postflop.

9-2 offsuit is too weak to continue from the small blind against the big blind.

9c2c is a very weak button hand and not worth entering against two blinds.

Q5o is a weak holding that plays poorly in a 3-way pot, especially out of position post-flop. With only 50 chips invested and needing to call another 50 to face a 200 chip minimum bet if I stay, folding preserves chips for better spots.

6h2h is a weak hand with no potential for strong combinations. Folding preserves chips for better opportunities in later hands where position and hole card quality improve.

A7o is strong enough to raise heads-up against the big blind after the button folded, and taking the initiative can win the pot immediately or set up a favorable flop.

J7 offsuit has sufficient heads-up equity to defend the big blind against this small blind raise at a favorable price.

I raised preflop and the board is dry enough to continuation bet; a half-pot bet can fold out better ace-highs and missed hands, and I can shut down if called.

J-high with no flush draw and only weak backdoor straight possibilities has insufficient equity versus the flop continuation bet.

QJs has strong playability and position on the button; raising applies pressure and builds the pot with a hand that flops well.

Pocket nines are a strong short-handed holding; a small-blind 3-bet extracts value and discourages the big blind from entering cheaply.

6-8 offsuit is a weak hand with poor equity against two opponents who have shown strength with raises. Seat 1 raised to 300 and seat 2 re-raised to 900, indicating strong holdings. Folding saves chips and avoids playing from the big blind in a raised pot with poor cards.

Facing a 3-bet with QJs in position, I have good implied odds and pot odds to call; 4-betting would overcommit against a strong range. I'll take a flop in position.

I have flopped unbeatable quad nines. Checking gives the preflop raiser room to continuation-bet or improve enough to pay later.

I have flopped quads, and a modest turn bet is designed to keep overpairs, trips, full houses, and straight draws involved while beginning to build the pot.

Calling 700 with QJ on a 9-9-7-8 board; I have a gutshot and overcards, and the pot odds are reasonable. Raising risks too much against a possible 9 or overpair.

I have the absolute nuts with quad nines. A moderate value bet is more likely to be called by overpairs, sevens, eights, and full houses than an all-in shove.

Q-high with a missed flush draw on a paired board has almost no showdown value against a preflop 3-bettor who has now bet turn and river. Folding avoids paying off a likely 9, 7, or overpair.

8-2 offsuit is a very weak button hand and should be folded rather than entering against both blinds.

K2 offsuit is a weak hand with poor equity against the big blind's range. Folding the small blind avoids putting more chips at risk in a difficult position.

3h-Ks is a weak hand (weak kicker with a 3). Folding from the button with no particular strength against two opponents is correct. Calling 100 chips with this hand risks facing aggression without a clear edge.

Button folded, we're heads up. K2o has decent equity against a random hand, and raising takes initiative while denying BB a free flop.

J3 suited is too weak to defend against a small-blind raise heads-up, especially out of position.