What does, “We are urged by the highest authority to spend rather than to save. Only by spending can we make the wheels of industry turn. We are urged to deliberately waste material. Throw away your razor blades, abandon your motor car, and purchase new” tell you about how often consumers were buying these goods?

You are given the first four terms of an arithmetic sequence. why might you use a recursive formula? why might you use an explicit formula? under what conditions might a recursive formula be preferred over the explicit formula? under what conditions might an explicit formula be preferred over the recursive formula? pleasss ! sorry if it's a long question: (