URGENT HELP PLEASE Answer all please

Exhibit 4. A project manager has discovered that three tasks are on the critical path for a particular project. She has developed the time estimates (in days) shown in the table below. Complete the table and determine the expected completion time for the project. A) 19 days B) 21 days C) 18 days D) 17 days Question 52 ( 5 points) Exhibit 4. A project manager has discovered that three tasks are on the critical path for a particular project. She has developed the time estimates (in days) shown in the table below. Complete the table and calculate total variance of the critical path. A) 1.36 B) 2.25 C) 4.05 D) 2.01 Activities J,K,M, and S immediately follow activity H, and their latest start times are 10,14,12, and 11 . The latest finish time for activity H cannot be determined. is 11 . is 10 . is 14. is 12 . Question 54 (5 points) Activities H,G,P, and R are the immediate predecessors for activity W. If the earliest finish times for the three are 20 , 19,16 , and 17, then the earliest start time for W is 19 is 17. cannot be determined. is 20