Answer: 
Step-by-step explanation:
 The missing figure is attached. 
 The volume of an oblique cylinders and the volume of  a right cylinder can be found with this formula:
  
 
 Where "r" is the radius and "h" is the height.
 The volume of an oblique cone and the volume of  a right cone can be found with this formula:
  
 
 Where "r" is the radius and "h" is the height.
 According to the information given in the exercise, you know that the volume of the cylinder and also the radius of the cylinder and the cone ,are the following:
 
 Therefore, in order to find the volume of the cone, you only need to multiply the volume of the cylinder by  .
.
 Then, you get:
 
 
        
                    
             
        
        
        
If an adult ticket costs $10, and a chlid's ticket is $5, then one possible combination of tickets could be 30 adult tickets and 10 children tickets. Another could be to sell 15 adult tickets and 25 children tickets. 
        
             
        
        
        
Answer:
1/3
Step-by-step explanation:
transfer 4 to the other side then the sign will be minus 
then divide 1 by 3 
 
        
                    
             
        
        
        
Answer:
16.2
Step-by-step explanation:
12*1.35=16.2
(can I get brainliest pls)