What is the common ratio in this recursive definition ?
HELP PLEASE
                                             
                                          
                                          
                                        
											 
											Answer:
(d) r = -2.1
Step-by-step explanation:
The common ratio is the coefficient of the a[n-1] term. It is the value that the previous term is multiplied by in order to get the next term.
r = -2.1