1. A machine that costs $65,000 will depreciate to $5,000 in 10 years. Calculate its book value at the end of the sixth year and the depreciation expenses for the seventh year using the fixed-proportion method.
2. How long will it take for equipment valued at $35,000 to depreciate to less than half of its original value if it normally depreciates to $5,000 in 14 years? Use the fixed-proportion method.