I raise A9s on BB with 3 limpers. Correct?

I thought my pot equity preflop was larger then 25%, therefore was that a good raise?

The limpers were usual loose players.

How about the rest of te hand I played?

PokerStars 0.50/1.00 Hold'em (6 handed) converter

Preflop: Hero is BB with 9[img]/images/graemlins/club.gif[/img], A[img]/images/graemlins/club.gif[/img].
<font color="#666666">1 fold</font>, MP calls, CO calls, Button calls, SB completes, <font color="#CC3333">Hero raises</font>, MP calls, CO calls, Button calls, SB calls.

Flop: (10 SB) 3[img]/images/graemlins/club.gif[/img], 9[img]/images/graemlins/spade.gif[/img], 6[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(5 players)</font>
SB checks, <font color="#CC3333">Hero bets</font>, MP calls, CO calls, Button calls, SB calls.

Turn: (7.50 BB) 2[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(5 players)</font>
SB checks, <font color="#CC3333">Hero bets</font>, MP calls, CO calls, <font color="#CC3333">Button raises</font>, <font color="#CC3333">SB 3-bets</font>, Hero calls, MP calls, CO folds, Button calls.

When I made the call after the reraise I was getting 7.75 : 1 pot odds and odds against making flus were 4.11 : 1. The implied odds were even bigger as I figured someone made str8/set. Was that a good call?

River: (20.50 BB) 5[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(4 players)</font>
<font color="#CC3333">SB bets</font>, Hero folds, MP calls, Button calls.

Final Pot: 23.50 BB

Results in white below: <font color="#FFFFFF">
SB has 4c 5h (straight, six high).
MP has 9h Qc (one pair, nines).
Button has 2s 2h (three of a kind, twos).
Outcome: SB wins 23.50 BB. </font>