The circumference is 75.4 :)
There's more than one way to do this problem.
Try this: Mult. both 109 and 5 by 2, obtaining 218 and 10.
What is 218 div. by 10? Do this in your head.
82,000 bc 8% of 50,000 is 4000 and 4000 times 8 is 32,000 + 50000
The answer -35.5 Hope this helps you