The terms bounded above are also used in the mathematical literature for sets that have upper bounds. Chaldean Numerology. The numerical value of upper and lower bounds in Chaldean Numerology is: 8. Pythagorean Numerology. The numerical value of upper and lower bounds in Pythagorean Numerology is: 9.
Confidence votes 23. In Arizona a child must be at least 5 years old to not require a child restraint, however, a child restraint need not be placed in the back seat. It is unsafe for a child of under 12 to ride in the front seat if there is an air bag. 11 people found this useful.
Height Requirements. A child must be at least 4 feet 9 inches tall and age 13 to safely ride in the front seat, according to the Centers for Disease Control and Prevention. If your child reaches this height but hasn't reached his eighth birthday yet, he still needs to sit in a booster in the backseat.