x/r nut vs unknown?

Posted 8 years, 3 months ago

Blinds: $0.08/$0.16 (6 Players) BB: $33.91
UTG: $15.90
MP: $16.67 (Hero)
CO: $16.00
BN: $17.71
SB: $23.00

Preflop ($0.24) Hero is MP with 7 7

UTG folds, Hero raises to $0.48, CO folds, BN calls $0.48, 2 folds

Flop ($1.20) 5 4 7

Hero checks, BN bets $0.80, Hero raises to $2.88, BN calls $2.08

I'd like to ask you guys, do you ever x/r this hand against unkown?
Do you at all x/r nuts vs unkowns as a pfr?