The formula for circumference is

.
To express the circumference exactly, plug the diameter in for

and put the

symbol in front of it. Don't multiply. This expresses the exact circumference.
Say you have the diameter of 17.
You can express the circumference with 17

.
I think it is 5/12 I hope it’s ok right
6% percent of 16842 is 1009.44. The predicted amount is 812. This is a reasonable estimation, so I agree with the prediction.
ACE IS THE CORRECT ANSWER
This is because
The triangle a c and e