Answer:
c=28.2857142857 inches
Step-by-step explanation:
The circumference of a circle can be found using:
[tex]c=\pi d[/tex]
We know the diameter is 9, and we are using 22/7 for [tex]\pi[/tex], so we can substitute them in
c=22/7*9
Multiply
c=28.2857142857
The circumference is 28.2857142857 inches
