Erica knits 18 squares on Monday. She knits 7 more squares each day from Tuesday though Friday. How many squares does Erica have in all by the end of the day on Friday

The percent discount was 120

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.