1. list the different clue words in these paragraphs that indicate that a comparison is being
made. if a clue word is repeated in the paragraphs, include it only once in your list.

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.