Holdem table

Ace-high hand on the button in a 3-handed game warrants a standard open raise to build the pot and take initiative.

J7 offsuit is a weak hand facing a button raise out of position, with the big blind still behind who could squeeze. Folding is clearly best.

Q5 offsuit is too weak to defend the big blind against a button open, especially out of position. Folding avoids a dominated, low-equity spot.

King-three offsuit is too weak to open the button even three-handed; dominated kicker risk and poor postflop playability make folding the best EV play.

Button folded, so this is heads-up versus the big blind with king-ten suited. Raising to 300 builds the pot with a strong suited hand rather than just completing.

9-2 offsuit is a weak hand facing a raise; folding is standard here.

A9o is ahead of a random button open range in three-handed play, so I raise to 2.5bb to take the initiative and fold out weaker hands.

2h4s offsuit is a weak hand facing a raise; folding from the small blind preserves chips.

72s is one of the worst hands to defend the big blind with, especially out of position against a button raise. Calling 150 more with minimal equity and poor playability is -EV, so folding preserves chips.

Button facing a raise-less limped pot isn't the case here; J5o is weak offsuit, not worth calling from the button with two players already in, best to fold and wait for a better spot.

Heads-up in the SB, T4o has enough equity against the BB's wide range to justify calling 50 into a 150 pot and seeing a cheap flop rather than folding or bloating the pot with a weak hand.

Button folded and the small blind completed, so KTo is ahead of a limp range heads-up and should raise for value rather than check. A raise to 400 builds the pot while keeping the hand playable if called.

Ten-four offsuit is far too weak to call 300 more into a 4x raise; my equity against any reasonable raising range is well below the required pot odds.

A6o is a profitable button open in 3-handed play; raising builds fold equity and positional advantage rather than flatting into two blinds.

Q2o is too weak to continue out of position against a button open, so folding avoids a dominated spot.

53o is too weak to open even from the button in three-handed play; folding avoids putting chips in with a hand that flops poorly and is dominated often.

Heads-up after button fold; K9o is a reasonable raising hand from the SB, so I raise to build the pot and apply pressure on the BB.

Facing only 150 more into a 350 pot against a wide small-blind open, J9o has enough equity to defend; folding is too tight and 3-betting this weak a hand out of position is unnecessary.

Dry board favors the preflop aggressor; a small c-bet with overcards can win the pot uncontested or set up further bluffs.

I hold jack-high with no pair, no draw, and little fold equity against the preflop raiser's 55% pot continuation bet on a dry board. Calling needs ~26% equity that J9o rarely has here, so folding is clearly cheapest.