help please  help me with all of it I don't know nothing. bless ur hearts 
                                             
                                          
                                          
                                        
											 
											Answer:
200 , 0 , 133.33333
Explanation:
velocity = change of X / change of T
so
400/2 = 200
0/2 = 0
400/3 = 133.33333