Answer:
sali's speed was 18.75 km/h
Step-by-step explanation:
Jane took 3.5 hours to cycle the 63 km.
As,   , so the speed of Jane will be:  
Suppose, the speed of Sali is   km/h
Sali caught up with Jane when they had both cycled 30 km.
So, the time required for Jane to cycle 30 km  and the time required for Sali to cycle 30 km  
Given that, Sali started to cycle 4 minutes or  after Jane started to cycle. So, the equation will be.......
 
        
             
        
        
        
Answer:
3/4 
Step-by-step explanation:
 
        
                    
             
        
        
        
D. it represents the product of two rational numbers and is equivalent to an irrational number
        
                    
             
        
        
        
Answer:
same I'm with u!?
Step-by-step explanation:
I need help on that to pls help smart person I no ur out the some were hurry pls :(