43.5 is 783 divided by 18      783 ÷ 18 = 43.5
        
                    
             
        
        
        
Answer:
      x = 5/2
Step-by-step explanation:
2^x+4 = 2^3x-1
x + 4 = 3x - 1
3x - x  = 4 + 1
 2x   = 5
      x = 5/2
 
        
             
        
        
        
Answer:
3rd Option: 1
Step-by-step explanation:
Step 1: Define
(x + 4)/3x
x = 2
Step 2: Substitute and Evaluate
(2 + 4)/3(2)
6/6
1
 
        
                    
             
        
        
        
Answer:
it says round to the nearest 10th so it wouldn't be 81, it would be 81.8%