We know, Length of Image = Length of Object * Dilation factor, 
Just substitute your known values, 
Length of Image = 9 * 2 = 18
In short, Your Answer would be 18 cm
Hope this helps!
        
             
        
        
        
Answer:
77/16
Step-by-step explanation:
 
        
             
        
        
        
Find the volume of the cone Vc
Find volume of sphere Vs
Volume of shaded figure Vsh=Vc-Vs