Answer:
b = 2
Step-by-step explanation:
In order to find the value of b, we have to isolate b on one side of equation first
So,

Multiplying 2 with b-1

Adding 2 on both sides

Dividing by 5 on both sides

So the value of b is 2 ..
G(x)=10 because they g goes into c
Answer:

Step-by-step explanation:
To understand this question you would first of all need to know about negative exponents and multiply fraction by integers.
Example I would like to find out
,
You would first normally solve this question by squaring, which would result in 4 then divide it by 1. Like this: 
Which would be 0.25 or 1/4
Lets apply this knowledge to the following question:
1. 
2. 
3. 