Answer:

Step-by-step explanation:
We want to simplify:

We rewrite as positive index to get:

This simplifies to

This will finally give us:

We cannot simplify further.
Hence the simplest form is 
Step-by-step explanation:
This is in the form of

in this case, x is 1 and y is 7. So ourbpoint would be (1,7.)
Answer:
Step-by-step explation: 1500-500=900 900/3=300 so 300 is your answer