Welcome to your interview.
The question is on your right: Forecast MAU and Server Costs. 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.
Explain how you would structure an Excel model to forecast monthly active users (MAU) and the associated server costs for Unity Technologies.