I am trying to figure out the NPV of projects.

Project Cash Flow Today Cash Flow in one Year

A$ -9M $23M

B $7 M $2M

C $16M $-5M

The Cash Flows are certain and the risk-free interest rate is 9%

Your firm has identified three potential investment projects. The projects and their cash flows are shown here:(Click on the icon located on the topright corner of the data table below in order to copy its contents into a spreadsheet.) Projec Cash Flow Today Cash Flow in One Year t (millions) (millions) A negative $ 9$9 $ 23$23 B $ 7$7 $ 2$2 C $ 16$16 negative $ 5$5 Suppose all cash flows are certain and the riskfree interest rate is 9 %9%. a. What is the NPV of each project? b. If the firm can choose only one of these projects, which should it choose based on the NPV decision rule? c. If the firm can choose any two of these projects, which should it choose based on the NPV decision rule