Which of the alternatives described below is more economical if (a) the assetsare depreciated on a straight-line basis, (b) the tax rate is 40%, and (c) theafter-tax MARR is 6%?

1. How does the outcome change if this was a before-tax analysis? 2. What is the after-tax result if the life had to be shortened by 3 years? 3. Describe the difference between a before-tax and after-tax MARR. 4. Perform a parametric analysis on the corporate tax rate and explore what impact this might have on decision-making. 1. How does the outcome change if this was a before-tax analysis? 2. What is the after-tax result if the life had to be shortened by 3 years? 3. Describe the difference between a before-tax and after-tax MARR. 4. Perform a parametric analysis on the corporate tax rate and explore what impact this might have on decision-making