Generally, no. The age of majority in most US states and Western countries is 18. That's when you're considered a legal adult and you can make all your own decisions. In some cases a minor can be legally emancipated, but if you're still in high school it is unlikely that you will be granted emancipation.
Not without their permission.
16 with parents permission, 18 without permission.
Generally the answer is no.
No she can not.
Legally in Georgia you must be 18.
You can get emacipated
No, only someone "of age" (18 years) can live without parental permission, If they do the parents can be charged with abuse.
As long as they are minors, no they cannot.
Not unless you get a court order that will allow it.