Answer:
B [2,∞)
Step-by-step explanation:
There are 4 terms. Those terms are 4n, 2n, 9, and 5.
The equation of a circle:

(h, k) - a coordinates of the center
r - a radius
A diameter d = 2r
We have

Answer: d = 2 · 10 = 20
A or b
P
E
M
D
A
S
I use it now
Answer:
answer is b
Step-by-step explanation: