Dear Ronny,
I hope this message finds you well. I wanted to take a moment to express my gratitude for your recent help with my studies; your insights have been invaluable.
As I prepare for the upcoming exams, I have a few questions that I hope you can assist me with: What key topics should I focus on for the mathematics exam? Are there any specific resources you would recommend for revision? Lastly, how do you suggest managing time effectively during the exams?
Thank you once again for your invaluable support. I look forward to hearing from you soon.
Best regards,
[Your Name]