a farmer needs to enclose a selection of land in the shape of a parallelogram by using on side of a barn for one side. The barn and the side opposite of the barn will both be 11 feet long. One of the other sides will be 8 feet long. What is the length of the last side?

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.