Hold'em table

8-6 offsuit on the button in a 3-handed game with 100bb stacks is a marginal hand; it's at the bottom of a reasonable button raising range and plays poorly out of position against the blinds, so folding is the disciplined choice.

9-3 offsuit is a weak hand out of position, so I fold instead of paying 50 more to play heads-up against the big blind. The 50 already posted is a small price compared with the trouble this hand would cause postflop.

2-7 offsuit is the worst starting hand; folding on the button costs nothing and avoids a bad spot against two opponents still to act.

Complete the small blind heads-up with K-high; folding for 50 more gives up too much equity.

Button folded and SB just limped; J9o is a reasonable hand to raise for value and isolate a limper in position-less but heads-up spot with initiative. Raising punishes the weak limp and often takes the pot down.

K5 offsuit is too weak to defend the small blind against a 3x raise, especially out of position.

A♠J♥ is a strong button opening hand three-handed and benefits from taking initiative. I use a standard 2.5bb open.

T6 offsuit from the small blind facing a button raise with the big blind still to act is a clear fold; it plays poorly out of position and has little equity against a raising range.

5-2 offsuit is the weakest hand; calling 150 to win 400 is not worth playing out of position against a button raise, so I fold.

7-4 offsuit on the button facing two players behind is a clear fold; it's well below a standard button opening range and has poor playability.

9-4 offsuit is a weak hand; heads-up against the big blind it is playable in theory, but it plays poorly out of position, and a fold costs only the 50-chip small blind.

7-6 offsuit is a weak hand out of position against two players who still have to act behind or around me, so I fold rather than pay 100 to see a flop and play a marginal hand.

Ace-king suited is a premium heads-up blind-versus-blind holding, so I raise for value and initiative.

2s5d offsuit is one of the weakest starting hands; facing a 3x raise from the small blind out of position, calling 200 into a 400 pot with a hand that plays poorly postflop is -EV. Fold.

Jc6c is a playable suited button hand, and a small open can leverage position while risking little.

9-4 offsuit from the small blind facing a button raise is a clear fold; it plays poorly out of position with the big blind still to act.

A7o in the big blind getting 400 to 150 (about 2.7:1) against a button min-raise is a clear call. The hand has decent equity and the button range is wide, and a 3-bet would be marginal.

Top pair with a decent kicker on a dry A-3-5 board, out of position heads-up against a button raiser. Betting about 2/3 pot builds value from worse aces and charges draws and straight hands like 4x and 2x.}

With only jack-high and no meaningful draw on this ace-high flop, folding to the continuation bet is the best option.