$59 cell phone with a 10% discount

Find 10% of 59 and subtract it from 59.

0.10 * 59 = 5.9

59 - 5.9 = 53.1

So the price will be $53.10

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.