Can anyone help me to answer 8-10 and the other 10 as well? if so please help I have a test on them. Thank You (don’t troll or i will report you)

Iwould say they are complementary because that’s the division of a 90 degree angle and it’s split between the middle of them

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.