Yes, probably most.
The plural form of thirteen year-old is thirteen year-olds.
definitly not!
Of course.
Yes, a thirteen year old is typically considered a teenager rather than a child.
No, the words 'thirteen' and 'old' are adjectives; the words 'years' is the noun they describe.In the form a 'thirteen year old' followed by a noun is an adjective phrase:They solved the thirteen year old mystery.A thirteen year old boy wrote the song.
When I was thirteen, I was getting internship for writing articles for the children section.
Anyone between 12-15
Yes.
only if the parents say she can. otherwise, she has to wait until she is 18!
No.
No it is illegal.
Yes, a range of between G3 and G5 is a good range for a thirteen year old.