You are going to divide 366 by 12 you get 30.5 so 30 filled cartons
are you sure it's not 336 eggs??
My answer was deleted but ill post it again. it is a line plotted at the point (-2,-0.5) and the slope is down 1, right twice. this is a negative line.
It would be: 12/15 = 4/5
In short, Your Answer would be 4/5
Hope this helps!