Answer:
I think it's 30 ( I'm not for sure)
Step-by-step explanation:
300 divided by 2 is 150
150/5=30
9pi
circumference= 2 (pi) (r)
radius = diameter \ 2
r = 9 \ 2 = 4.5in.
c = 2 (pi) (4.5)
c = 9pi or 28.3in.
Hope this helps!