Answer:
(0, 3), (4, 9), (6, 9), (7, 17)
Step-by-step explanation:
the radius: r^2 = 81
r =9
c = 2*pi*r
= 2 * pi * 9
= 18 *pi
Answer: 18*pi or approximately 56.62
- 7/10
There you go hope alls well.
Answer five hundred and 10 for the exponent