Answer:
Step-by-step explanation:
∠FGE + 110 = 180  {linear pair}
∠FGE = 180 - 110
∠FGE = 70°
 
        
             
        
        
        
I believe the answer is 4
        
                    
             
        
        
        
Answer:
A positive number 
Step-by-step explanation:
 
        
             
        
        
        
Answer:
  (10a+5)²= 100 a( a+1) + 25
Step-by-step explanation:
<u><em>Explanation:-</em></u>
Given 
      (10a+5)² 
By using (a+b)² = a² +2ab +b²
                    = (10a)²+ 2 × 10a× 5 + (5)²
                    = 100a² + 100a + 25
                    = 100 a( a+1) + 25