The population of Hicksville increased from 20,000 to 24,500 in the past decade. What is the percent of increase in population of Hicksville?

40 percent???

Step by step:

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.

None of the options you showed are it.