The scale factor is 1/2 or a half
        
                    
             
        
        
        
12 = 12/1 = 24/2, 24/2+1/2=25/2 so 25/2, and it's in simplest form because 2 can't go into 25
        
             
        
        
        
Answer:
X is called the power of
1 is 10
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To get the difference between the two diameters, all you have to do is subtract the smaller diameter (Mercury) from the larger diameter (Saturn) as follows:
Difference between the two diameters =diameter of Saturn-diameter of Mercury
Difference between the two diameters = (1.2*10^5) - (4.9*10^3)
Difference between the two diameters = 115100 km
        
                    
             
        
        
        
A=27.18 
There is a photo showing the answer and the formula and stuff hope this helps