Answer:
try the second one because it is the smallest and close togehet so maybe that means that the mean is closer to the number and it nots some outlier.
Step-by-step explanation:
2ax-6ay+bx-3by
2ax+bx -6ay-3by
x(2a+b) -3y(2a+b)
(2a+b) (x-3y)
6. or 1
7. or 1