General price inflation is estimated to be 3% for the next 5 years, 5% the 5 years

Question:

General price inflation is estimated to be 3% for the next 5 years, 5% the 5 years after that, and 8% the following 5 years. If you invest $10,000 at 10% for those 15 years, what is the future worth of your investment in terms of actual dollars at that time and in terms of real base-zero dollars at that time?