both of them
Both parents
Either divorced, estranged or separated.
Where parents have spilt-up/divorced, and children are in the custody of either parent (generally).
In real life her parents are not divorced. On Hannah Montana (TV Show) her parents are not either, as her mother passed away in the show.
you can either be happy about it (i highly doubt it), or you can choose which parent to live with, or live with a different relative
If both parents have legal guardianship (rights) to be with the child, either parent can claim the cellular.
you have to fight for custody
Having a baby doesn't change your age. Parents are responsible until you turn 18 in Florida, or in Tennesse until you are 18 and graduate high school. If your parents give their permission there is nothing to stop you. But that doesn't relieve them of the responsibility for providing support and maintenance.
The new marriage of either of the parents should not have any effect on a child support obligation.
You would be added as an occasional driver after one is licensed. When divorced it is up to either parent to add them. If they will be driving both parents cars then they will need to be on both policies.
Child support, is based on the needs of the child and the economic situation of the parents. Child support is primarily determined by what it takes to provide the child with a reasonable standard of living, based on what the two divorced parents have available. Sole custody indicates that the child will be living solely (with limited visitation) with a just one of the parents. Thus, that parent will be responsible for providing the vast majority of the food, clothes, etc. that the child will be using. The non-custodial parent now no longer will be providing those (if they had shared custody). So it is likely that the court will also modify the child support requirement - either reducing the amount the custodial parent had been paying the now non-custodial parent, or increasing the amount that the now non-custodial parent had been paying the now custodial parent.
They are still considered a minor. The parents are responsible for them until the become an adult at age 18.