Answer:
Je ne parle pas français donc j'utilise un traducteur. J'espère qu'il n'y a pas trop d'erreurs. Le frère de Maurice a dépensé 5,20 $ et Maurice 20,80 $
Step-by-step explanation:
 
        
             
        
        
        
Answer:
75%
Step-by-step explanation:
The <em>number </em>increase is 9. 9 is what percent of 12? 9 is 75% of 12
 
        
             
        
        
        
Answer:
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
The function is polynomial with the following characteristics
Degree: 5 and leading coefficient: -13.
Step-by-step explanation:
You can see the explanation in the image.
I will like to mention that the question is a little obscure, and the explanation applies for the following function:

You always have to choose the highest power of x, in order to find the leading term.
 
        
             
        
        
        
The answer is 15 oz
Hope I helped