Factor the sum of the terms as a product of the gcf and another sum 12+18

Identify whether the figure has plane symmetry, symmetry about an axis, or neither.

My math teacher told my class to "steal" a 6th grade fraction word problem from the internet, word problems? : -p requirements: only a 1 step word problem. needs to be complex.

Can someone me out here and the tell me the greatest common factor