Answer:
$25.28
Step-by-step explanation:
Since a 4 pound bag cost $3.16 you would do 32 divided by 4 and you would get 8. Then you would do 8 times 3.16 and you get 25.28. 
The long way:
 4 bags = 3.16 
8 bags = 6.32
12 bags = 9.48
16 bags = 12.64
20 bags = 15.80
24 bags = 18.96
28 bags = 22.12
32 bags = 25.28
 
        
             
        
        
        
»»————- ★ ————-««
I believe your answer is:  

»»————- ★ ————-««  
Here’s why:  
⸻⸻⸻⸻

⸻⸻⸻⸻
»»————- ★ ————-««  
Hope this helps you. I apologize if it’s incorrect.  
 
        
             
        
        
        
So the answer would be letter D