Pues no se nada alv perdon
        
             
        
        
        
Answer:
a=4.2
Step-by-step explanation:
6.4-a=2.2
so 6.4-22=a
4.2=a
 
        
                    
             
        
        
        
Answer:              It would be the first equation because:
Step-by-step explanation:         
In order to be an exponential function, the X
variable has to be in the exponent, that eliminates
the second and fourth answers
 
        f(X) = 4(3)X
 
using the point (2,36)
 
   f(2) = 4 (3)2
 
          = 4 (9 )
 
          = 36
 
        
                    
             
        
        
        
The function is the Sine Curve
y = sine (x)