52÷8=6.5
This is because 8 can go into 52, six times then your decimal pops up.
0.581 i used a calculator
Answer:
The Circle on the Top right doesn't belong since every other circle has a green quadrant, whereas on the other hand the circle on top right is missing the green quadrant
Hope this helps!
You can see 84.78 as
.
So, you can see the problem as 
First, multiply all the numerators together and all the denominators together.
You end up with 
=33.912