i cant seem to get the answer right :(

Answer:
D. 4.5
The Area is 63.585
Step-by-step explanation:
So the diameter is twice the size of the "r" or radius so divide 9 by 2
which is 4.5
The formula for a circle is πr^2
4.5 times itself is 20.25
times pi or 3.14 is 63.585
Hope this helps!