Solve for MO. 
A)6
B)9
C)15
D)21
                                             
                                          
                                          
                                        
											 
											Answer:
I believe the answer for MO would be 21 :)
Step-by-step explanation:
Well, the answer for NO is 15, but that is not what we are looking for. the other two answers don't make sense at all, therefore it has to be 21.