I believe the answer is 2, the 3 large circles are filled with 5 dots each, the total number of dots is 17. 15 is the number closest to 17 that can be divided by 3 therefore there would be 2 left over (the 2 dots on the outside)
You need to create common denominators and then add and then subtract to get 22/48
So firstly, factor out h on the left side: 
Next, divide both sides by h: 
Lastly, subtract both sides by b and your answer will be 
The answer is
3^66483360316461674016
In expanded form or decimal form 32/100 is equal to 0.32 or 32% or if simplified the fraction is 8/25