A7o in SB, suggested line of play plz ?

[elrudo]

Sorry, couldnt get the handconverter to work.

Level 4 20+2 Party Sit-and-Go.
I have A7o in the Small Blind, one limper from UTG.

Limper has been in many pots, and played mostly agressive.
He limped with small PPs and JTs.
Big Blind has played only a few hands, appears to be tight.
Myself I havent played many hands.
I took the previous pot uncontested pushing A6o (didnt show) after SB completed the blinds.

***** Hand History for Game 2535375629 *****
NL Texas Hold'em $20 Buy-in + $2 Entry Fee Trny:14840044 Level:4 Blinds(50/100) - Sunday, August 14, 18:27:42 EDT 2005
Table Table 14005 (Real Money)
Seat 10 is the button
Total number of players : 5
Seat 1: lonewood ( $930 ) HERO SB
Seat 3: KinGMerc ( $645 ) BB
Seat 4: Barrley ( $1715 ) Limper
Seat 9: Rontti ( $3110 )
Seat 10: bledsoe24 ( $1600 )

Trny:14840044 Level:4
Blinds(50/100)

** Dealing down cards **
Dealt to lonewood [ Ad 7s ]
Barrley calls [100].
Rontti folds.
Bletsoe24 folds.

lonewood ...

Should I fold, call, raise, push ?
Is it even close ? ( Hero sucks at postflop play, if that matters)

[pokerlaw]

I usually push this, expecting the limper to fold.