pay per click strategy

What is a Pay Per Click strategy as it relates to SEO?
What do you believe are the advantages of using tools like Google Ads with an SEO strategy?
Search for an item that you intend to purchase in the next 90 days. That is the item? What 2-3 companies show up in the text results? The image results? Would you have considered going through these vendors in the first place for the item? Share your results.
Please answer in 500 words and in complete sentences. Provide 2-3 resources for support.