Stan-Rite Corp of Manitowoc, Wisconsin, is a B to B company that manufactures many types of industrial products, including portable measuring arms with absolute encoders, designed to perform 3D inspections of industrial parts. If the companys cash flow (in millions) for one of its product divisions is as shown on the table below, determine ( a ) the number of possible i * values and ( b ) all rate of return values between 0% and 100%. Show BOTH MANUAL AND SPREADSHEET SOLUTIONS, AS WELL AS CASH FLOW DIAGRAM.

Year Expenses Revenues

0 $30 $ 0

1 20 18

2 25 19

3 15 36

4 22 52

5 20 38

6 30 70