Welcome to your interview.
The question is on your right: Top Promo Products by Zip. Take a moment with it first.
Talk your thinking through with me if you like - when you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes). Discussion and graded submissions share your five interviewer interactions, so spend them well.
Write a query to find the top 3 best-performing promo products (where the promo flag equals 1) for each zip code over the last month.