Answer:
B
Step-by-step explanation:
 
        
             
        
        
        
Answer:
20.8333333
Step-by-step explanation:
6 x 20.8333333 = 125
 
        
             
        
        
        
Answer:
90 and 10
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:45 * t = 2.5 * (1-t)...the equation will have one solution. 
Step-by-step explanation:
For this case, the first thing you should know is:
 d: v * t
 Where,
 d: distance
 v: speed
 t: time
 To go to school by bus we have:
 d = 45 * t
 To return from school we have:
 d = 2.5 * (1-t)
 how the distance is the same:45 * t = 2.5 * (1-t)