How to page 40

I'm happy to help! However, I need more context to understand what you mean by "page 40". Are you referring to:

  1. A book or document and you want to know how to turn to page 40?
  2. A digital document or PDF and you want to know how to navigate to page 40?
  3. A website or online content and you want to know how to access page 40?

Please provide more information or clarify your question, and I'll do my best to assist you!