Answer:
i think it is D bro let me know if i am right okay and can i get branliest if i get it right 
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
x² + 9x + 8
Step-by-step explanation:
Step 1: FOIL
x² + 8x + x + 8
Step 2: Combine like terms
x² + 9x + 8
 
        
                    
             
        
        
        
Answer: $3,166
Step-by-step explanation:
 
        
             
        
        
        
One way to do this is to notice

Then

We have

and since 
 has a period of 
,

and so
