Answer:
   8.284 × 10^4 m^2
Step-by-step explanation:
The area is the product of length and width:
   (5.45·10^5 m)·(0.152 m) = 0.8284·10^5 m^2 = 8.284·10^4 m^2
 
        
             
        
        
        
there are 5 1/5 in an hour
 so multiply 1/2 by 5
1/2 = 0.5
0.5 *5 = 2.5 miles in 1 hour
 
        
             
        
        
        
Answer:
A.
Step-by-step explanation:
6, 11,14,14,19,20
Adding these 6 numbers we get  84.
84 / 6 = 14 = mean.
Median =  middle number(s) = 14
Mode = number occurring most = 14.
 
        
             
        
        
        
Answer:
Vertical and Supplementary
Step-by-step explanation:
Vertical: 
each of the pairs of opposite angles made by two intersecting lines.
Supplementary:
Two Angles are Supplementary when they add up to 180 degrees. These two angles (140° and 40°) are Supplementary Angles, because they add up to 180°: Notice that together they make a straight angle. But the angles don't have to be together.