Answer: x=42
Step-by-step explanation: In the picture
 
        
             
        
        
        
Answer:

Step-by-step explanation:
 
        
             
        
        
        
Answer:
c 
Step-by-step explanation:
what ever it is you do the same on the other side 
 
        
                    
             
        
        
        
The margin of error given the proportion can be found using the formula

Where

 is the z-score of the confidence level

 is the sample proportion

 is the sample size
We have



Plugging these values into the formula, we have:

The result 0.14 as percentage is 14%
Margin error is 38% ⁺/₋ 14%