Seven-hundred-ten Jokes

Yesterday I was having some work done on my car at the Ford dealer. Woman joke 710 maths
While I was talking to Bert, the Mechanic, a woman came in and asked for a seven-hundred-ten.... We all looked at each other, and the Bert asked, `What is a seven-hundred-ten?`
She replied, `You know, the little piece in the middle of the engine. I lost it and need a new one. It had always been there.` 710 - New female maths
Bert gave the woman a piece of paper and a pen and asked her to draw what the piece looked like. She drew a circle and in the middle of it wrote 710. He then took her over to another car which had the hood up and asked, `Is there a 710 on this car? `
She pointed and said, `Of course, its right there.