Answer:
its you again 
Step-by-step explanation:
if they have the same amount of dashes on the same sided they are congruent 
does that answer your question 
 
        
                    
             
        
        
        
Answer:
The percent error in his estimate is<u> 16.67%</u>.
Step-by-step explanation:
Given:
Christopher estimates it will take him half an hour to complete his math homework. 
He is able to complete it in 25 minutes.
Now, to find the percent error  in his estimate.
Time estimates of completing homework = 30 minutes.
Time actual taken to complete homework = 25 minutes.
Error in estimate = Time estimates of completing homework - Time actual taken to complete homework.
Error in estimate = 30 minutes - 25 minutes.
Error in estimate = 5 minutes.
Now, to get the percent error:
 



Therefore, the percent error in his estimate is 16.67%.
 
        
             
        
        
        
Answer:
The Greatest Common Factor (GCF) for 100 and 80, notation GCF (100,80), is 20.
Step-by-step explanation:
 
        
                    
             
        
        
        
The answer_ It would be even