An investment has the cash flow profile shown below:

Year	Cash Flow		Year	Cash Flow		Year	Cash Flow
0	-$120,000		4	$80,000		8	$20,000
1	$60,000		5	-$ 140,000		9	$ 25,000
2	$ 45,000		6	$50,000		10	$30,000
3	$70,000		7	$ 15,000

Using an internal rate of return analysis, from Descartes' rule of signs, what is the maximum number of positive internal rates of return?

There are at most ______ positive-valued internal rate of return solutions.

Using an internal rate of return analysis, is Norstrom's criterion satisfied? Why or why not?

(Yes or No), Norstrom's criterion (is,is not satisfied), because cumulative cash flow changes signs _____ time(s).

Using an internal rate of return analysis, identify the real, positive-valued root for the polynomial equation used to calculate the internal rate of return.

________ %

Round entry to 2 decimal places. The tolerance is 0.05. If there is more than one positive-valued root, enter the minimum IRR.