Cost $49.00
mark up 25%
how much does the item cost?

$61.25

Explanation:
100 / 25 = 4
49.00 / 4 = 12.25
49.00 + 12.25 = 61.25

therefore $49.00 with a mark up of 25% is $61.25.

hope this helps :)

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.