Negotiate with one another, buy and sell products, and facilitate the change of ownership between buyer and seller in the course of moving finished goods from the manufacturer into the hands of the final consumer.

answer: a. the kind of population living in your neighbourhood.

the census explorer data tool by the us census bureau allows the user to zoom in on any neighbourhood within the united states and find the kind of people residing in that by race and age.  

the tool needs to needs to be used twice – once in order to find what type of people reside in a neighbourhood, and then to see the age groups of the people in the same neighbourhood.

answer; buying the bill at a discount from the face value to be received at maturity;