How to Use Hyphens

Which of These Sentences Has a Hyphenation Mistake?

The winner of the pie-eating contest ate ninety nine pies.
The seven-foot tall man was obvious in the crowd.
Her two-thirds share of the business meant that she called the shots.
She owned two-thirds of the voting stock in the business.
He preferred to use a 200 millimeter lens to photograph birds.
She preferred to use a 300 mm lens to photograph birds.
This climate requires that you air condition your house in the summer.
That city typica...