4

Could you clarify what you need with "4"?

Here are quick options (I can do any you want):

• Generate four practice questions on a topic (please specify subject and level)
• Solve problem #4 from your set (paste the full problem)
• Give a quick four-point summary of a concept (topic you choose)
• Four exam-prep tips or strategies

If you want, I can just produce four calculus problems now, or four questions in any other subject. What would you prefer?