Answer:
12
Step-by-step explanation:
 
        
                    
             
        
        
        
<span>
Let's analyze Hannah's work, step-by-step, to see if she made any mistakes. </span>In Step 1, Hannah wrote 

 <span> as the sum of two separate derivatives </span>

 <span>using the </span><span>sum rule.
</span>
This step is perfectly fine. In Step 2, 

 was kept as it is, and 

 was rewritten as 

 using the constant rule.Indeed, according to the constant rule, the derivative of a constant number is equal to zero.
This step is perfectly fine. In Step 3, 

  was rewritten as 

 supposedly using the constant multiple rule.
The problem is that according to the constant multiple rule, 

 should be rewritten as 

 and not as 

.  
<span>
Therefore, Hannah made a mistake in this step.</span>
 
        
        
        
The answer is 35 because 20-10=10 then 25+10=35 so niki made 35 points on her final round
        
             
        
        
        
Answer: is in the picture
 
        
        
        
Answer:
Yes a number with 3 digits is usually bigger than a number with 2 digits but sometimes if it is a decimal than the decimal can be bigger