Lois wrote a check for $180. She also made two deposits of $40 each. Write the total change to her account balance as an integer.

-180 + 40(2) =
-180 + 80 =
-100

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.