Answer:
Step-by-step explanation:
If they were joined together, wouldn't the length of both squares combined be 20cm?
Therefore, it'd be (10+20+10+20) for the perimeter. 
60cm. 
 
        
             
        
        
        
Answer:
may be these are your following 
u forgot to right options that's why i am doing according to me
if these are wrong please tell me I will do according to your options 
Step-by-step explanation:
in this 2 table does not repeat a proportional relationship 
 
        
             
        
        
        
One metric ton is equal to 1000 Kilograms
        
             
        
        
        
Let p represent # of pages in the book.
Then (1/4)p = 67. Solve for p by mult. both sides of this equation by 4:
p = 268 (pages)
 
        
                    
             
        
        
        
it’s the 3rd one. so.. 5/8