In math class, 4 students complete individual surveys to determine the percentage of high school teachers that have a second job. which two surveys show proportional results? a) a and b b) b and d c) a and d d) b and c

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.