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
 
        
             
        
        
        
8/10 is the answer to this problem
        
                    
             
        
        
        
Answer:
2.5 or 250.
Step-by-step explanation:
 
        
             
        
        
        
Not A because regular means all sides are equal.
B has to be the answer because the others are not.
Not C because a right triangle is not regular, i.e. and equilateral triangle.
Not D because a rectangle has different side lengths.