Hello : 
<span>g(n) = n2 − 16n + 69
       =( n²-16n+64)-64 +69.....(</span><span> completing the square)
</span>g(n) = (n-8)² +5...... (<span>the vertex form)
the vertex is : (8,5)
</span><span>the axis of symmetry is the line : n = 1</span>
        
             
        
        
        
Answer:
f(x)= -0.4x+107
Step-by-step explanation:
 
        
             
        
        
        
Step-by-step explanation:
Correct option is C)
41− 
21+ 
19− 
9
 
 
 
 
= 
41− 
21+ 
19−3
 
 
 
= 
41− 
21+ 
16
 
 
 
= 
41− 
21+4
 
 
= 
41− 
25
 
 
= 
41−5
 = 
36
 =6