ANSWER
D. 
EXPLANATION
The given explicit formula is
and
This implies that,
The explicit formula is given by:
We substitute the known values to get; 
        
             
        
        
        
Answer:
D) 15
Step-by-step explanation:
The sum of the interior angles of a polygon is given by 

We have that, the sum of the interior angles of a polygon is
26 right angles. We want to find n, the number of sides.
We substitute into the formula to get:

Divide through by 90

Divide through by 2



 
        
             
        
        
        
The answer is 180 degrees. The rotation that maps one side
to an adjacent side is 360°/6 = 60°. This is the least rotation that plots
the regular hexagon to the aforementioned. In the least whole number of these
minimum rotations,
such as three 60° rotations to make 180°, will retain
the hexagon identical.
 
        
                    
             
        
        
        
Answer:
65,536
Step-by-step explanation: