Plz. me help and show your WORK on how to do this

77.39m+15

Step by step:

= 59.95m + -30 + 7.95m + 45 + 9.49m

= 59.95m + –30 + 7.95m + 45 + 9.49m

= (59.95m + 7.95m + 9.49m) + (-30+ 45)

= 77.39m + 15

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.

What am i doing here. add?