River call is w/e, i guess I should fold but V seemed like a whale. Unsure of what to do ott, I feel like I am ahead really often vs this sizing, but I can never raise turn on this board?

iPoker - $0.25 NL (6 max) - Holdem - 6 players
Hand converted by PokerTracker 4

CO: 100 BB
BTN: 110.88 BB (VPIP: 20.00, PFR: 10.00, 3Bet Preflop: 0.00, Hands: 10)
SB: 93.76 BB (VPIP: 30.00, PFR: 10.00, 3Bet Preflop: 0.00, Hands: 10)
Hero (BB): 100 BB
UTG: 131.56 BB (VPIP: 71.43, PFR: 28.57, 3Bet Preflop: 0.00, Hands: 7)
MP: 88.2 BB (VPIP: 20.00, PFR: 10.00, 3Bet Preflop: 0.00, Hands: 10)

SB posts SB 0.4 BB, Hero posts BB 1 BB, CO posts penalty blind 1 BB

Pre Flop: (pot: 2.4 BB) Hero has A 7

UTG raises to 2 BB, fold, fold, BTN calls 2 BB, fold, Hero calls 1 BB

Flop: (7.4 BB, 3 players) A J K
Hero checks, UTG bets 2 BB, fold, Hero calls 2 BB

Turn: (11.4 BB, 2 players) 7
Hero checks, UTG bets 3 BB, Hero calls 3 BB

River: (17.4 BB, 2 players) 9
Hero checks, UTG bets 4 BB, Hero calls 4 BB