5/6 is your answer, explanation is in the image, hope this helps! :D
 
        
        
        
<span>In this case, that would be 13,000.</span>
        
             
        
        
        
Answer:
x= ?
Step-by-step explanation:
 
        
                    
             
        
        
        
We have to find the values of F.
In this case. F is unlikely to be a polynomial. 
But the problem is, we can’t calculate the values of F directly.
There is no real value of x for which x = x−1 x because F isn’t defined at 0 or 1. so,
substituting x = 2. 
F(2) + F(1/2) = 3. 
Substitute, x = 1/2
F(1/2) + F(−1) = −1/2.
We still are not getting the required value,
therefore,
Substitute x = −1 
As, F(2) +F(−1) = 0. 
now we have three equations in three unknowns, which we can solve.
It turns out that:
F(2) = 3/4
F(3) = 17/12
F(4) = 47/24 
and
F(5) = 99/40
Setting
g(x) = 1 − 1/x 
and using 
2 → 1/2 
to denote 
g(2) = 1/2
 we see that :
x → 1 - 1/x → 1/(1-x) →xso that:
g(g(g(x))) = x.
Therefore, whatever x 6= 0, 1 we start with, we will always get three equations in the three “unknowns” F(x), F(g(x)) and F(g(g(x))).
Now solve these equations to get a formula for F(x)
As,
h(x) = (1+x)/(1−x)which satisfies 
h(h(h(h(x)))) = xNow, mapping x to h(x) corresponds to rotating the circle by ninety degrees.