3 men walk in a dinner, they order their food and get there bill which was $30, they split the bill so each man pays $10.
The waitress collects the money & gives it to the boss, when she gives it to the boss he says give them a $5 discount.
The waitress keeps $2 as her tip and gives a dollar back to each man.
There for each man really only paid $9, so what does 9 9 9=?[27] the $2 dollars the waitress kept=[29]. WHAT HAPPENED TO THE OTHER DOLLAR?
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