Hold'em table

Q6o is too weak and poorly connected to open from the button; folding avoids a dominated, low-playability hand.

Seven-three offsuit on the button is far too weak to call even a single blind, and raising a trash hand into two random holdings has poor equity. Folding preserves chips for better spots.

86o is too weak to complete or raise from the small blind out of position against the big blind.

A8o is a standard open-raise from the button in 3-handed play.

42 suited is too weak to continue out of position against a button open; folding saves chips for better spots.

J9 suited is a strong button open in three-handed play, so I raise to 3bb to take the initiative and fold out weaker hands.

43 offsuit is one of the worst hands and I'd be calling 250 more out of position against a button raise with the BB still behind; my equity doesn't justify the call, so folding loses the least.

A7o is well within the standard BB defending range against a button open in 3-handed play, getting over 2:1 pot odds.

I missed the flop with ace-high out of position against the preflop aggressor, making an easy check to see what the button does.

I have top pair with a decent kicker on a dry 983 board after the big blind checks, so a small value bet builds the pot and charges weaker pairs and floats.

I only have Ace-high with backdoor possibilities on a 9-8-3 board, making a fold against the c-bet out of position standard.

J9o is a standard button open in 3-handed play; raising builds the pot with initiative and fold equity against two blinds, and I can fold cheaply if they play back aggressively.

97s plays poorly out of position from the small blind against a 3x button open with the big blind still behind.

AK suited is a premium hand versus a button open, so I 3-bet to 10bb for value and fold equity rather than flat.

J9o is far too weak to call a 3-bet facing 700 more; I'm likely dominated by a strong BB range and folding saves 700 chips for better spots.

J2s is too weak to open profitably from the button even in 3-handed play.

32o is too weak to continue out of position for another 50 after the button folds; folding limits the loss to the small blind.