Question 7 0.3 pts What is the NPV of an investment with the following cash flows:-$100 today; $20 in one year: $50 in two years; and $80 in three years. Use a discount rate of 5%. $42.75 $133.5 $142.75 $33.5 Question 8 0.3 pts If the NPV of a project is $20,000 and the profitability index is 4.5, what was the initial investment necessary to pursue the project? $3,333.33 $2,222.22 $5,555.55 $4,444.44