Answer:
the answer is a, unchecked growth
It would be subtraction I think
A circles equation is
(x – h)^2 + (y – k)^2 = r^2
The center is at the point (h, k)
The radius is r.
Your circles equation is:
(x – 2)^2 + (y – 8)^2 = 5^2
16 for every 100
8 for every 50
1 for every 16
.5 for every 8