Answer:
11^(x-y)
Step-by-step explanation:
If there is a same number which is divided by the same number, but with different powers, then we subtracted down value from the upper one.
Example: 17^7/ 17^5
=> 17^(7-5)
=> 17^2
So, the answer to this question is 11^(x-y).
Answer:54pounds
Step-by-step explanation:63-9=54
Guess I'll agree with the other person.
-> 3rd answer is correct