Answer:
200
i just know its 200 no explanation
 
        
             
        
        
        
Step-by-step explanation:
a square plus b squad plus c
 
        
             
        
        
        
Answer: B is 11 feet tall
A=x+1 since A is one more than B
C=x+1/2 since C is one half more than B
B=x since B is just B
A+B+C=34.5
x+1+x+x+1/2=34.5
3x+1.5=34.5
3x=33
x=11
B is 11 feet tall
 
        
             
        
        
        
Answer:
5
Step-by-step explanation:
Take 20, and divide it by 4.
  
        
                    
             
        
        
        
Step-by-step explanation:
the first one is the correct one 
a, = -51+12(n-1)
a(2) = -51+12(2-1)=-39 
I hope this helps
Im sure from the answer 
but I couldnt explain it exactly