$($Discounted payback period$)$ Gio's Restaurants is considering a project with the following expected cash$$ flows:

Year

Project Cash Flow$($millions$)$

$0-180$

$1100$

$280$

$3100$

$4105$

$($Click on the icon in order to copy its contents into a spreadsheet.$)$

If the$$ project's appropriate discount rate is $9$percent$,$ what is the$$ project's discounted payback$$ period?

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Part $1$

The$$ project's discounted payback period is

$$

enter your response here years.