Basketball courts come in different sizes and colors. In the NBA, the court is 94 feet (29 m) by 50 feet (15 m). Under International Basketball Federation (FIBA) rules, the court is minutely smaller, measuring exactly 28 metres (92 ft) by 15 metres (49 ft). high school court is slightly smaller, at 84 feet (26 m) by 50 feet (15 m). In amateur basketball, court sizes vary widely. The baskets are always 10 feet (3.0 m) above the floor (except possibly in youth competition).
You can have 10 devices (a maximum of 5 computers) associated with your Apple ID and iTunes at one time. Computers and devices can be associated with a different Apple ID once every 90 days. Each computer must also be authorized using the same Apple ID. You don't need to authorize your iPhone, iPad, or iPod touch.
The iMessages are related to your Apple ID. Therefore, any device that is setup to use your Apple ID is capable of receiving your iMessages. If you have an iPhone, the phone number is also associated with your Apple ID and all devices using the Apple ID can receive iMessages sent to your phone number.