Below is a spreadsheet designed to calculate the project completion time.Use the spreadsheet to answer the following question(s) . 
-What is the latest start time for Activity P?
Definitions:
Societal Responsibility
The obligation of organizations to act in ways that benefit society at large, beyond their own interests or profitability.
Ecological Environment
The complex of biological, chemical, and physical factors that act upon an organism or an ecological community and ultimately determine its form and survival.
General Public
The larger community of people in society who are not segmented by any specific interest or profession; the broad population.
Profit Responsibility
The obligation of an organization or individual to achieve financial gain while considering ethical and social impacts.
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