Answer:
the answer is d
Step-by-step explanation:
 
        
             
        
        
        
Answer:
x=2/5 or
x=0.4
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
it is 18 
Step-by-step explanation:
to find the scale factor divide 48 by 32 to get 1.5, and then multiply the diameter given which is 12, by 1.5 to get 18