I really don't understand this can someone please help? 
                                             
                                          
                                          
                                        
											 
											Answer: Could just answer for these two, sorry
b)48
d) 127
Step-by-step explanation:
b) EC=180
180= EA+AB+BC
180=79+53+AB
AB=180-132=48
d) EA+AB=79+48=127