imma go with my gut and say b :?
 
        
             
        
        
        
Answer:
 217 children and 481-217 = 264 adults
Step-by-step explanation:
 
        
             
        
        
        
Answer:
$1.21 he will recieve
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
Um it might be 1 but feel free to correct me if I'm wrong
 
        
             
        
        
        
Answer:
Because we actually divide by 10 when a number is multiplied by 0.1.
Step-by-step explanation:
Let  be a number.
 be a number.
When we multiply a number by 10:
 (One '0' is increased in the number)
 (One '0' is increased in the number)
For example:

Considering a decimal number:

Multiplying a number with 0.1 (which is actually  ) means dividing the number by 10.
) means dividing the number by 10.

Considering a decimal number:

<em>Therefore, When multiplying a number by 0.1, move the decimal to the left.</em>