1. The annual worth for years 1 through infinity of $75,000 now, $25,000 per year in years 1 through 15 and $40,000 per year in years 16 through infinity at a 10% interest per year is closest to: (a) $27,500 (6) $36,000 (c) $44,000 (d) $ 19,500 2. The overall rate of return on $250,000 investment that returns 25% on the first $ 100,000 and 15% on the remaining $150,000 is closest to? (a) 22% (b) 27% (c) 19% (d) 16.5% 3. Fill out the following table with the correct information: Sign on Net Cash Flow by Year Type of Series 0 1 2 3 4 Number of Sign Changes 5 0 + + + + I + 1 + + + +