Answer:
I'll attach a photo of my answers. I can also provide work if needed, but based on this photo, it looks like an online quiz so I won't waste my time with that. 
I hope this helps! Feel free to give me Brainliest if you feel this helped. Have a good day, good luck on your assignment. :)
 
        
                    
             
        
        
        
Charlie spent $89 more dollars on ice cream than on yogurt. He spent a total of $96 on ice cream and $7 on yogurt. If you subtract 7 from 96 you get 89. 
$96- $7= $89
        
                    
             
        
        
        
Answer:
Yes, 4 + -4 = 0.
Think of it like a number line: The number four is 4 units to the right of the center which is 0, and the number negative four is 4 units to the left of the center. When you add them together, those distances cancel out, and you just get 0.
 
        
             
        
        
        
Answer:
I think it is B) 0
Step-by-step explanation:
 
        
             
        
        
        
When x =2, f(x) = 128
When x = 4, f(x) = 8
The changing rate is 

This changing rate represents the decrease of the number of contestants as the competition approaches the final.
Correct option is the first option
<span>
−60 contestants per round and it represents the average rate at which the number of contestants changed from the second round to the fourth round 
</span>