Answer:
1/43,046,721
Explanation:
So when you have a negative power, instead of multiplying, you are going to divide. This means you have the reciprocal of 9, which is 1/9. So for example instead of multiplying 1 times 9 8 times, your equation will be more like: 1 times 1/9 times 1/9 times 1/9 times 1/9 times 1/9 times 1/9 times 1/9 times 1/9 times 1/9, which when simplified is 1/43,046,721. Now, you might need to have it not in fraction form, but that's just the way I found it to be easiest.
I hope this helps :)