Answer:
it takes 24h 
Step-by-step explanation:
 
        
             
        
        
        
Answer:
9 square kilometers
Step-by-step explanation:
Let's round the width to 2.0 kilometers, and round the length to 4.5 kilometers.
We know that area is length times width, so
A = lw
A = 2.0*4.5
<u>A = 9.0 square kilometers</u>
If we do this on the calculator, it's around 9.36 square kilometers, so our estimate was good.
 
        
             
        
        
        
Amounttotal=amount per day times number of days
200=17.1 times d
divide both sides by 17.1
11.695=d
about 12 days
        
             
        
        
        
Counter example, Two Points, point A& B can be in the plane while point C is out side if the plane.