Short Answer (Double Weight] 1. In a Solow economy, net investment in 2025 is 100, total investment in 2025 is 400, and the capital stock in 2025 is 6000 What is the depreciation rate? Answer in percent, and feel free to round to the nearest percentage point: % 2. You have $100 in your investment account today; it will grow 7% per year. How many years will it take for your investment to be worth $800? Give an answer correct within two years: years 3. If variable X grows 8% per year, approximately how fast does X? grow per year? Be within one percentage point of the true ans inswer: % 4. A nation's population is growing 2% per year, and its total GDP is growing 1% per year. What is the annual rate of growth of GDP per capita? Feel free to round to the nearest percentage point: %