14 boys and 21 girls will be equally divided into groups find the greatest number of groups that can be created if no one is left out

The greatest number of groups that can be created if no one is left out would be 7.

The first one, i believe, would be correct. all the others have one thing in common, and that's that they have repeating numbers. in the second one, x and y have repeating 6's and 3's, and in the third, x and y have repeating 6's as well. in the last one, there are repeating 3's. the first one has no repeating numbers.

Just divide the x axis (the top) by 2 or multiply the y axis (the bottom) by 2