Answer:
Decay...? Read below
Step-by-step explanation:
Assuming you meant to put 20 - (1.27)x, it is decay. As the x increases, the y decreases, making it decay.
 
        
             
        
        
        
63-52 
11! 
Hope this helps
        
                    
             
        
        
        
When dividing by a negative number, you switch the signs.
        
             
        
        
        
Answer:
1. Allans brother is 19
2. $18.75
Step-by-step explanation:
1.   11 x 2= 22 - 3= 19
2.  $1.05 x 15= $15.75
      $15.75 + $3 = $18.75