Divide 4 by both sides
Then you get 4=3+b2
Then subtracts 3 from four
You get 1=b2
Answer:
B. 
Step-by-step explanation:
Given:

Hence Solving the given expression we get;
By Law of Indices which states;

Hence we get;

Also We know that

So,

Answer:
c
Step-by-step explanation:
efrgrf
Answer:
A. 4/5
Step-by-step explanation:
The red dot is on 0.8
0.8 as a fraction is 4/5