Answer:
look at picture
Step-by-step explanation:
x:good seats
y:seats others
The first six composite numbers are 4, 6, 8, 9, 10, 12. Their average is their total divided by their number.
... 49/6 = 8 1/6
There would be 36/12 if you were talking about 3 wholes but if you were just talking about 1/3 you would have 3/12
now for the example I don't know
3 is not equivalent to -3, however it is the exact opposite of 3 I hope this helped ^^