Draw the network and find critical path

Question

Problem:

Schedule the following activities using CPM:                         

Activity Immed. Precessor            time (weeks)

A                                                 1

B                       A                        4

C                      A                         3

D                      B                         2

E                     C, D                     5

F                      D                        2

G                     F                         2

H                    E, G                      3

Required:

Question 1) Draw the network.

Question 2) What is the critical path?

Question 3) How many weeks will it take to complete the project?

Question 4) Which activities have slack, and how much?

Solve the problem and show all work.