Answer:
1) 1/3 
2) 4:1
Step-by-step explanation:
 
        
                    
             
        
        
        
-1.5 is your answer, your welcome
        
                    
             
        
        
        
The answer will be (x-9) with a little two in the corner *2
        
                    
             
        
        
        
I assume you mean the equation

Since i = √(-1), we have i⁴ = 1 and so i⁵ = i. Then 2x + 3 must be some multiple of 5.
Now just check for which of the given choices that this holds:
x = 16   ⇒   2x + 3 = 35   (yes)
x = 11   ⇒   2x + 3 = 25   (yes)
x = 10   ⇒   2x + 3 = 23   (no)
x = 14   ⇒   2x + 3 = 31   (no)
 
        
             
        
        
        
Answer z=2
See picture attached for the math