Answer:
wheres the question
Step-by-step explanation:
 
        
             
        
        
        
Answer:
i) Because so that we can understand them steps by step
ii)We could enjoy when we study in school 
 
        
                    
             
        
        
        
Answer:
the answer is 1060
Step-by-step explanation:
1064 rounded by tens is 1064
 
        
                    
             
        
        
        
Answer:
Increased by 5%
Step-by-step explanation:
Let at the beginning the student's score be  points.
 points.
At first, it increased by 40%. So, the new score is 

Then it decreased by 25%, so the new score is 

At the beginning of a month the score was  and at the end of that month the score was
 and at the end of that month the score was  . Since
. Since  the score increased by
 the score increased by 