Answer:
3
Step-by-step explanation:
to find side length of squares take square root of areas
first square side length: 9
second square side length: 6
difference between 9 and 6 is subtraction, 9-6=3
 
        
             
        
        
        
Answer:
Step-by-step explanation:
12,800 written as 1.28 x 104 in scientific notation
 
        
             
        
        
        
True, you would use the ratio of minutes to seconds.