Answer:
60 km/hr
Step-by-step explanation:
Speed = distance / time
Speed = 360 km / 6 hr
Speed = 60 km/hr
 
        
                    
             
        
        
        
 Answer:
190 students
Step-by-step explanation:
Set up a proportion:
95/100 = x/200
Cross multiply:
100x = 19000
Simplify:
x = 190 students
 
        
             
        
        
        
Answer:
First derivative the equation 
39x²-318x-412=0
then use the quadratic formula
then x = 9.29 or x = -1.14
 
        
             
        
        
        
The correct answer is 4x to the third power.