Answer:
 0.81 hour
Step-by-step explanation:
Given data
Distance=  544.32 miles 
Speed=  672 miles per hour.
We know that 
Speed= distance/time
Substitute
 672=  544.32/time
cross multiply
time*672= 544.32
time= 544.32/672
time= 0.81 hour
 
        
             
        
        
        
Answer:
C
Step-by-step explanation:
 
        
             
        
        
        
Answer:
7
Step-by-step explanation:
 
        
             
        
        
        
Ya s means or stands for speed