Answer:
Choice B
Step-by-step explanation:
7.1×10⁵ = 710,000 
 
        
                    
             
        
        
        
Answer:
C) 
Step-by-step explanation:
The formula for area is
A=pi * radius ^2
If the diameter is 40, the radius is 20
Therefore

 
        
             
        
        
        
M = (y2 - y1)/(x2-x1)
 = 2+5/-3-1
 = 7/-4
 = -7/4
        
             
        
        
        
It would be 1000 since the 2 is not bug enough to carry it over.
        
                    
             
        
        
        
42/28 = 1.5
3 times 1.5 = 4.5
he would be able to run 4 and a half miles in 42 minutes