At the End of the Year 2000, the Total Reserves

Short Answer

At the end of the year 2000, the total reserves of a natural resource was approximately 500,000 m³. During 2001, 4000 m³ of the resource was consumed, and consumption was predicted to increase 9% per year after that. Under these assumptions, how many years (after the year 2000) will the resource last? Round to 1 decimal place.