17-10= j      i really don't know i just guessed  
        
             
        
        
        
Answer:
The surface area of the prism is 108 square in.
 
        
             
        
        
        
There is a common ratio of 2/3 between the height of the ball at each bounce. So, the bounce heights form a geometric sequence: 27, 18, 12. Two-thirds of 12 is 8, so on the fourth bounce, the ball will reach a height of 8 feet.