BB:       t840               28 BBs
BTN:     t460        15.33 BBs
Hero (SB):    t200      6.67 BBs

Pre Flop: (t45) Hero is SB with 5  Q 
1 fold, Hero calls t15, BB checks

Flop: (t60) Q  7  5  (2 players)
Hero checks, BB checks

Turn: (t60) A  (2 players)
Hero checks, BB checks

River: (t60) 3  (2 players)
Hero bets t30, BB folds

Q 

How would you play this hand each steet, readless?