291-186=105 (total earned through wages) 
105/5=21 
Therefore she worked 21 hours
 
        
                    
             
        
        
        
The answer that you are looking for is 2
        
                    
             
        
        
        
Answer:
<h2>C.</h2>
Step-by-step explanation:
<, > - open circle
≤, ≥ - solid circle
<, ≤ - draw to the left
>, ≥ - draw to the right

 
        
             
        
        
        
Answer:

Step-by-step explanation:
So we have: 

This is the same as: 

Separate: 

Replace the second term with i: 

The square root of 66 cannot be simplified. 
So, this is our answer :)