Ineed with my homework ? anna can buy 3 sweatshirts for a total of $45. how much would it cost if she were to buy 5 sweatshirts at the same price?

Nine dollars per sweatshirt (5) in total 45

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.