Answer: 3054 in^3
Step-by-step explanation: The formula for the volume of a sphere is V = 4/3 pi r^3, where r is radius.
Since the diameter is 18in, the radius would be 1/2 or 9in, and plugged in V is 
V = 4/3(3.1415)(9)^3
 
        
                    
             
        
        
        
This is for the first answer and to be honest just use Desmos if you don’t have a graphing calculator
 
        
        
        
If there are 2 genders it's 2^12, which is 4096
        
             
        
        
        
Answer:
8 inches.
Step-by-step explanation:
In the first bounce, the height that the ball reaches was 125 inches.
If the ball always bounces back to  of the height, then after 2nd bounce it will reach
 of the height, then after 2nd bounce it will reach  inches height.
 inches height.
Again, after 3rd bounce, it will reach  inches height.
 inches height.
And, after 4th bounce, it will reach  inches height. (Answer)
 inches height. (Answer)