Hold'em table

A9 offsuit is a strong heads-up blind-versus-blind hand, and raising builds value while pressuring the big blind's wide range.

6-5 offsuit facing a 3x raise from the small blind is not worth defending; folding preserves chips.

T3 offsuit is a weak button holding in a three-handed game and is not worth entering against the blinds.

Heads-up with A7 suited, a standard raise to build the pot and isolate the big blind.

4-8 offsuit is a weak hand. Seat 3 raised to 300, requiring 200 more. With a weak holding and no information advantage, folding minimizes expected loss against a raiser.

QQ is a premium hand; raise for value from the button to build the pot and isolate the blinds.

4-2o is one of the worst hands in poker. Facing a 3x raise from the button as small blind, folding is the correct play to preserve chips against a likely stronger range.

8c4d is too weak to defend against a button raise from the big blind.

9-5 offsuit is a weak hand in early position. With 100 chips to call from the button, folding preserves chips for stronger opportunities.

Closing the action from the small blind, the 50-chip price gives a very favorable price to see a flop with this suited-gap hand.

Pocket pair, small raise to build pot and thin the field with only one limper behind.

T6 offsuit is too weak to defend against a big-blind isolation raise when the button has folded.

9-6 offsuit is a weak button opening hand in this short-handed configuration, and folding avoids entering a dominated pot.

Weak offsuit low cards (6-3) with no pair or suited connectivity; folding from SB is correct against a raise scenario, but here I'm just completing option—since to_call is only the difference, but hand strength is too poor to continue heads-up out of position vs BB.

Pocket pair on the button; raise for value and to isolate against blinds with position.

2-9o is a weak hand with poor playability. Folding to a 3x raise is correct when out of position with marginal hole cards, avoiding difficult decisions on later streets against a likely stronger range.

J5 offsuit is too weak to defend profitably against a button 3x open from the big blind.