1.
the closest perfect squares of 12 are 9 and 16, 
that is 9<12<16
so 


this means, 

 is  3 point something...
2.
similarly 
36<40<49
so


which means 

 is 6 point something...
3. 
<span>the sum of the integers between the square root of 12 and 40 is the sum of 4, 5 and 6, since 4 is the smallest integer after root 12, and 6 the greatest integer to before root of 40.
Answer: 15</span>
 
        
        
        
Answer:
Length of unpainted strip of each part of the road = 9 yard
Step-by-step explanation:
Total length of the road = 208 yard
When it is divided into 16 equal parts,
length of each part = 
                                  = 13 yard
Mr.Ward paints 4 yard long strips in each part .That is he does not completely paint the part but paints only a small section of each part.
Length of unpainted strip of each part of the road = length of each strip - length of strip painted by Mr.Ward
Length of unpainted strip of each part of the road = 13 - 4
Length of unpainted strip of each part of the road = 9 yard
 
        
                    
             
        
        
        
600 km=600,000 m
So 600km is bigger than 5 m