please show work

a. perform forward and backward pass calculations to calculate early start, early finish, late start, late finish, and total float for all activities and identify the critical path.

b. utilize the least-cost crashing solution to compress the schedule as much as possible. list the crashing steps on the provided table. How does this network compression affect the project schedule? How much total cost has been added to the project?

*Assume the first day starts at 0.

Actor 13 10 D Gathe. Craig Pr Der 1 2 3 4 5 6 7 Total Das Ced Total Add COM BPOM SMART SB KVM SWTCH Activity Cost/Day Crashin 5 B 13 D 2 E BOLSO 1200 10300 13 J F A 2.000 2@100 19 G 26200 2 400 26450 Crosting Step Activity to Crush # of Days Crashed Is Cowboy Added Cost Project Durohon 1 2 3 5 Total lot Days Crashed Total Added Cost Actor 13 10 D Gathe. Craig Pr Der 1 2 3 4 5 6 7 Total Das Ced Total Add COM BPOM SMART SB KVM SWTCH Activity Cost/Day Crashin 5 B 13 D 2 E BOLSO 1200 10300 13 J F A 2.000 2@100 19 G 26200 2 400 26450 Crosting Step Activity to Crush # of Days Crashed Is Cowboy Added Cost Project Durohon 1 2 3 5 Total lot Days Crashed Total Added Cost