Answer:

Hope this helps! If you need an explanation, I've got you.
Answer:
if you mean cubed its 125 but if you mean squared its 25
Step-by-step explanation:
I'm guessing you mean to find the answer. So find a common denominator, which is 10. You can leave 7/10 alone. Now multiply by 5 on both the numerator and denominator of 1/2. It would be 5/10. Now subtract 7/10-5/10. The answer is 2/10. It can be simplified to 1/5. The answer now would be: 1/5
I hope this helps. :-)
The answer is A. this is because your are multiplying by 9 throughout