Answer:
Around eighth grade, which would make the children around 14 y/o
Explanation:
Most of them leave for jobs at the age of 14. Up until then, school is compulsory(required by law).
The border states were important to the north during the Civil War because they were slave states that could have joined the Confederacy. *put into own words*
Generally speaking, yes, free market economies are meant to exist without governmental control, although in the "real world" there is almost always some amount of government oversight and control.
