Answer:
b
Explanation:
You have to solve all the equations to find which one equals 8
For a, you can take away the zero which leaves you with 72/9 which is 8. Then you add the zero back to the answer which gives you 80.
For b, you can cancel out the zeroes from 720 and 90 which gives you 72/9 again. That leaves you with 8.
For c, take away the zeroes leaving you with 72/9. Then you have 800 when you add the zeroes back.
For d, you can cancel out one of the zeroes which will give you 720/9. Then you take away the zero and now you have 72/9 again. Then add the zero to the answer which will give you 80.
Because b is the only equation that equals 8, it must be the answer.