Answer:

Step-by-step explanation:
We are given that Chantal drives at a constant speed of 55 miles per hour.
If, d represents the total distance in miles, and 
h represents number of hours, the following equation can be used to express the given situation:

For every hour, a distance of 55 miles is covered.
Thus, if h = 1, 
If h = 2,  .
.
Therefore,  , is an ideal equation that represents the situation given in the question above.
 , is an ideal equation that represents the situation given in the question above.
 
        
             
        
        
        
Well that symbol is an indention or multiply sign of expression
        
                    
             
        
        
        
The Order of magnitude for the population of the world is not five
        
             
        
        
        
40
100
 or the decimal 0.40. Notice that 80 out of 200 and 10 out of 25 are also 40%, since  
80
200
=
10
25
=
40
100