Well... if 9*3 = 27... which is what they gave the waitor... and the bill was only 25... and 27-25=2 -- the 2 dollars is there with the waiter.

Of course, I'm wrecking my brain over trying to figure out that this has probably got such an obvious answer, because by going by THAT the "where is the $1!" is killing me.

:D Just so you know, I've had this open for about 6 hours and came back and forth between it :P