Answer:
here my answer 
Step-by-step explanation:
hope this helps 
 
        
             
        
        
        
Answer:
 a kite 
Step-by-step explanation:
 
        
             
        
        
        
Answer:
The elevator stops on the 19th floor.
Step-by-step explanation:
On the 16th floor, goes up 12 floors:
16 + 12 = 28
On the 28th floor, goes down 7 floors:
28 - 7 = 21
On the 21st floor, does up 3 floors:
21 + 3 = 24
On the 24th floor, goes down 5 floors:
24 - 5 = 19
 
        
             
        
        
        
Fill the 7 litre bucket with water and pour it out into the 4 litre bucket. 3 litres will be left in the 7 litre bucket