I have attached a chart of the given information. Using subtraction from 100 and the other totals, you should be able to figure out the answer. If not, comment and I will send the completed chart
 
        
             
        
        
        
Answer:
18
Step-by-step explanation:
2x9=18
 
        
             
        
        
        
Answer is 18
Step by step explanation 
6/? = 4/12
?=6*12/4=18
        
                    
             
        
        
        
Answer:
122.88
Step-by-step explanation:
<u>3072</u>
25
122.88 sorry I forgot how to show all the work I love my calculator but hopefully the answer you need will help.