Why should I believe you? Get quotes from friend and family members that you can use as proof that your paper airplane is the best. So basically quotes about how my paper plane is the best.

1) the stages a new product goes through from beginning to end, i.e., the stages that a product passes through from introduction through growth, maturity, and decline. 2) the time from initial research and development to the time at which sales and support of the product to customers are withdrawn. 3) the period of time during which a product can be produced and marketed profitably.

                                          hope it

all you have to do is give a good answer with details and the answer has to be understandable and then they will most likely give you the brainliest answer.