Answer:

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

We rewrite to get:

We now apply the laws of indices

We simplify to get 
We leave our final answer is scientific form.
The final answer is therefore:

C.30 because if u multiply the denominators you get 30 not the other numbers
You know what its probably 7.44
Answer:1.)-27
Step-by-step explanation:
Binomial theorem:

The

term corresponds with the term in the sum for which

. For this

, we get

So the coefficient you want to find is