Hold'em table

Q8o on the button in a 3-handed game is a reasonable open-raise to 2.5bb to steal the blinds and play in position; folding or limping is weaker.

96s is weak out of position facing a raise; not worth continuing with a marginal speculative hand this early.

72s is too weak to continue against a button open; folding avoids a dominated, low-equity spot.

J6o is too weak to continue from the button facing a raise-sized call with no equity edge in a 3-handed pot.

72 suited is too weak to continue out of position heads-up after the button folds; calling or raising just puts more chips in with a hand that plays poorly.

K8o is playable enough from the button in three-handed to open for fold equity and position rather than flat or fold.

J5 offsuit in the small blind facing a 3x open from the button is a clear fold; it plays poorly out of position and is dominated by most of the button's raising range.

J6o is a weak hand facing a raise from the button; not worth calling 200 more out of position.

K5o on the button in a 3-handed game is a standard open; raising to 2.5bb to take the blinds or play in position.

57o is a weak offsuit hand facing a raise with another player yet to act behind; not worth continuing.

J8 offsuit is too weak to continue out of position against a button open; folding avoids a dominated, hard-to-play hand.

A5 suited is a strong button hand against two limpers; raising builds the pot with good equity and fold potential.

J7 offsuit is too weak to continue against a button raise with the big blind still to act, so folding is the highest-EV option.

75 offsuit is a weak hand out of position against a button raise; folding is the standard play despite decent pot odds.

54 offsuit is too weak to open from the button for a full big blind, so folding preserves chips.

Button folded, so it's SB vs BB heads-up; K7o is a profitable open-raise from the small blind against a single opponent, taking initiative and often winning the blinds outright.

9h4h offsuit-ish weak hand facing a 3x raise with only one opponent left; not worth defending, fold to preserve stack.