A factory manufacturing computer circuits found 35 defective circuits in a lot 700 circuits. At this rate how many defective circuits can be expected in a lot of 1200
circuits?

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.

The answer is something i don’t know