Consider the following cash flow. Determine by graphical method the rate of return on this cash flow. Consider the three mutually exclusive alternative investments for a period of 50 years. Determine which investment is preferable by using incremental benefit-cost ratio analysis. You purchased a machinery for $230,000 which is a 7-year asset class. You sold it in the middle of the year 4 for $100,000. Calculate the capital gain or loss on this transaction. The MACRS percentages for this asset class are 14.29,24.49, 17.49, 12.49, 8.93. 8.92, 8.93, and 4.46 percent for years 1 to 8 respectively