Four Squares Productions, a firm hired to coordinate the release of the movie Pirates of the Caribbean: On Stranger Tides (starring Johnny Depp), identified 16 activities to be completed before the release of the film. The appropriate data are shown in the following table: This exercise contains only parts a and c. a) Four Squares should start preparing for the release of the movie weeks in advance of the film's release as this is the length of the project. (Round your response to two decimal places.)