Which explains how to find the radius of a circle whose equation is in the form x2 + y2 = z?

The radius is the constant term, z.
The radius is the constant term, z, divided by 2.
The radius is the square root of the constant term, z.
The radius is the square of the constant term, z.
*

Thats where they was ported and the fields that noone really knew much about needed tended, so they put slaves out there do free work and huge profits and so on the north decided to hold its own and was more different way of survival did not have same climate conditions to afford protecting slaves from winter so expenses be diff from south