
Step-by-step explanation:
the plus sign would have a line under it 
 
        
             
        
        
        
Answer:
126
Step-by-step explanation:
A Nonagon has 9 sides. To answer this, the polygon has to be regular.
The Perimeter is 9*14 = 126
 
        
                    
             
        
        
        
Answer:
0.54545454
Step-by-step explanation:
 
        
                    
             
        
        
        
If your asking to select all that apply,
 The formula is arc length = θ ( r ) {\displaystyle {\text{arc length}}=\theta (r)} , where equals the measurement of the arc's central angle in radians, and r {\displaystyle r} equals the length of the circle's radius. Plug the length of the circle's radius into the formula.
ABC,BAD,DCB
 
        
             
        
        
        
Answer:
B
Step-by-step explanation:
add 7 to get away the 7 on the left hand side
square both side to eliminate square root