Predecessors A 3. Draw the precedence diagram for the following project. Activity List for Reroofing Project Activity Description Duration Days A Move in 2 B Set up scaffolds 3 C Tear off old shingles 3 D Inspect roof truss and deck 2 E Remove old shingles to recycling yard 3 F Purchase new shingles G Install new shingles 3 I Move out 2 Under Predecessors, the following notation is used: x/#: Activity x must finish # days before this activity can begin. xSS/#: The # of days after activity x starts that this activity can begin. xFF/#: This activity cannot finish until # days after x is completed. XSF/#: This activity must finish # days before x can start. B/1 CSS/1 CFF/2 GSF/2 CD G 1 5 H Clean up H