Answer:
I hope this helps a little bit.
 
        
                    
             
        
        
        
2.57*10^4 is 1,000,000 times more than 2.57*10^-1
Why?
4-(-1)=5 2
2.57*10^4=25700
2.57*10^-1=0.0257
and
 25700
÷ 0.0257
=1000000
and 1000000=10^6
 
        
             
        
        
        
Answer: 
2nd one: amelia has 7 muffins left after filling 42 boxes 
Step-by-step explanation:
 
        
             
        
        
        
.8 repeating. I believe is this answer.