Circle O shown below has a radius of 29 inches. To the nearest tenth of an inch, determine the length of the arc, x, subtended by an angle of 42°.

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.