there is about mabye 20
depends on the the surface
Squash balls can be purchased online through a variety of websites such as Amazon and Sports Chalet. Squash balls are also available at many local sports and athletics stores such as Sports Authority or Academy Sports.
2000 billion balls
AnswerThe first sports balls were made with leather or pigskin.
I know there are 24 used in football all supplied by the home team.
"Bouncing into Science: Investigating the Physics of Sports Balls"
Balls
Cricket balls can be purchased at many outdoor sports stores. Any place that sells sports equipment would be likely to have them. You can also order them from stores like Wal-Mart as well.
the balls in sports (soccer ball, basketball, etc.)
It depends. What sports ball?
You need balls.
golf balls