Noah printed a map of a walking trail. The length of the trail is 12 cm. 1 cm on the map represents 2 km on the actual trail. What is the scale factor from the map to the actual trail?

What is the length of the actual trail?

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.