Answer:
The equivalent expression 
Step-by-step explanation:
Given:

We need to find the equivalent for given expression.
Solution:

Now by using Law of indices which states;

So applying the same in given expression we get;

Now we can say that;

Also


Now We know that;


On substituting we get;

Hence The equivalent expression 
Answer:
number one 50 I think and 3 is 75 not positive but I hope it helps
Step-by-step explanation:
Answer:
b
Step-by-step explanation:
b is the right answer
it is
sure
Answer:
-4/5
Step-by-step explanation:
6) x= 2, angle = 90 degrees obviously
7) Im not sure on this one
8) x = 5
9) x = 1