The answer would be 5866 because after it multiplied twice it would be at 8800 at that rate it would be gaining 1466.66 an hour so add that to 4400 and u get 5866
I think it is 53 that’s what i would put if i were u
For this case we have the following equation:

Let 
We have:

By definition, given an equation of the form 
The quadratic formula, to find the solution can be written as:

In this case we have:

Substituting in the quadratic formula we have:
See attached image
Answer:
Option B
Your answer will be 5xplus10
4/6=2/3 (divide both numerator and denominator by 2 (gcd)).
Hope this helps.