New to table. No reads.

Cake Poker No-Limit Hold'em, $0.20 BB (9 handed) - Cake-Poker Converter Tool from FlopTurnRiver.com

MP1 ($34.30)
MP2 ($23.85)
MP3 ($7.20)
Hero (CO) ($19.30)
Button ($20.55)
SB ($19.30)
BB ($19.80)
UTG ($3.40)
UTG+1 ($6.65)

Preflop: Hero is CO with 9 , A
5 folds, Hero bets $0.80, 1 fold, SB calls $0.70, 1 fold

Flop: ($1.80) 2 , 8 , 2 (2 players)
SB checks, Hero bets $1.45, SB calls $1.45

Turn: ($4.70) 7 (2 players)
SB checks, Hero checks

River: ($4.70) 9 (2 players)
SB bets $4.70, Hero...

edit: misread hand

I call, he can be value betting worse (8x/worse pocket pairs, maybe an ace). Figure the only feasible deuce is usually A2 and we slightly block it. Or he could be on an airball w/like KJ/KT.

Call

Call. he could have floated that dry flop looking to take it away on the turn or river from your whiffed overs.