Texas Math
A business owner in Texas was confused about paying an invoice minus the
early payment discount, so he decided to ask his secretary for some
mathematical help. He called her into his office and said, "You graduated
from the University of Texas and I need some help."
"If I were to give you $21,375 minus 12.75% how much would you take
off?"
The secretary thought a moment, then replied, "Everything but my earrings."
(You gotta love Texas women.)