answer quick pls!!!

In the following table the activities with their precedence sequence and expected time (weeks) are listed for Lillian Fok's construction project and on the right the precedence network is shown Activity J KLMNOP Nodes 1-2 1-3 2-4 2-3 3-4 4-5 3-5 The project length is weeks. The activities on the critical path are Time (weeks) 6 3 4 7 7 45comm K N OPGEPERST M 3 P 5