In a couple of sentences, describe an instance when you purchased an impulse item at the grocery store. Include the reasons that influenced your decision making process.​

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: (