Answer: A 
Step-by-step explanation:
A function is the comparing of two numbers all this is doing is multiplying two numbers. 
 
        
             
        
        
        
Answer:
O 40 
Step-by-step explanation:
because if you are doing algebra the term for a number is a letter and instead of doing 4xO you substituted to 4O
 
        
             
        
        
        
Answer:
Step-by-step explanation:
Given that :
Change in population per day is Giveb by the exponential equation : 50,00(1.05)