9x^2 y^2 and 5x^2 y^3 look for the greatest common factor

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.

What are the related frequencies to the nearest hundredth of the columns of the two way table? group 1: a-102 b-34group 2: a-18 b-14edited: i don’t have all day to be waiting for an answer. i figured it out.

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much