Answer:
35
Step-by-step explanation:
since i couldn't answer before 
 
        
             
        
        
        
F(x) = (-x²+x+20) / (x+4)
-x²+x+20     | x+4
+x²+4x          -x+5
 \\\\ 5x+20
     -5x-20
      \\\\\\\\\ 
 f(x) = (x+4)(-x+5) / (x+4) 
 f(x) = (-x+5)
The graph is a decreasing line, with origin from 5.   
 
        
        
        
Answer: C
Step-by-step explanation: Hope this help :D
 
        
             
        
        
        
Answer:
the equation of a straight line in the form y = mx + b where m is the slope of the line and b is its y-intercept.
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
n = 4
Step-by-step explanation:
Use the explicit formula of a arthmetic sequence: an = a1 + d(n - 1)
a1 = -70
d = -10
an = -100
Do all of the steps and plug all the numbers with the formula. 
So -100 = -70 - 10(n - 1)
-100 = -70 - 10n + 10
-100 = -60 - 10n
-100 + 60 = -40
-40 = -10n
-40/-10n = -10n/10
n = 4
So the final answer is n = 4. Just follow all of the steps and you will understand how I got my answer. Hope it helped!