Answer:
-8 divided by (-4)
Explanation:
-18 divided by -9 is +2 and that is what you want.
-18 divided by 2 is -9, not correct.
-12 divided by (-3) is +4, not correct.
-10 divided by 5 is -2, not correct.
Leaving the correct answer: -8 divided by (-4) is +2.
Remember: a negative times a negative equals a positive.