[Q5] (35 points) Consider the following investment projects: Project Cash Flow n A B 0 - $ 100 - $ 100 -$5 1 100 30 10 2 24 70 30 3 70 -40 a) Classify each project as either simple or non-simple investment. (5pts) b) Use the quadratic equation to compute i* for A. (5pts) c) Predict the number of possible real i*'s. Identify all projects having a unique i*.(5pts)