It’s been awhile since I’ve done a problem like this but I believe it’s solved as below:
The area of a circle is equal to πr2. That will tell you the entire area of the circle. Then you would need to divide that by 2 to get the area of the 180° arc.
So, the area of this circle is 153.94 square meters. If you divide that by 2 (since 180° is half of a circle) you would get 76.97 square meters.
First you need to break it down. If Kai picked 11 times more blueberries then Nico, the amount of blueberries he picked multiplied by the amount of blueberries Kai picked would be 936. Nico had to have picked more blueberries then ten, because 10x11 is only 110, and that isnt 936. He had to have picked more then 20, because 20x11 is 222. And he picked more then 30 because 30x11 is only 333. Normally I would keep on doing this, and soon you will get to 85. Thats your answer, and i hope i kinda helped you
Step-by-step explanation:

Answer: Katie, Josie, Ramona, Teri
Step-by-step explanation: