Answer:
14/15
Step-by-step explanation:
 
        
                    
             
        
        
        
F(x) = 5 + 2x  where x is the number of times he walks the neighbours dog
y-intercept is at y=5 and slope = 2
g(x) :-  As x increases by 4 g(x) decreases by -8  so the slope is -8/4 =  -2
when x = 0, g(x)  = the y intercept  is at -1 + (-8/2) = - 5
so equation of g(x) is  g(x) = -5 -2x
h(x):-    the slope is  (3 - 5) / (1 - 0)      [  difference in y values / diff in x values]
slope = -2
so we have h(x) = -2x + c   where c = the y-intercept
when x = 0  h(x) = 5
so  c = 5
 h(x) = 5 - 2x   
  Now j(x)= 2x - 5   - slope is 2 and y intercept = -5
        
                    
             
        
        
        
Step-by-step explanation:
independent is questions answered correct 
dependent is final test sore.
i think
 
        
                    
             
        
        
        
The answer would be <em>29.5562243957</em>.