Answers: A & C
Exlanation For A: 42 divided by 6 is 7, and 105 divided by 15 is 7. That is equivalent
Explanation For C: 36 divided by 6 is 6, and 90 divided by 15 is 6. That is also equivalent.
Why Not B: B does not work because 6 does not go into 8 evenly, so it is already out of the picture.
~Deceptiøn