Consider the following data for a project to install a new server at the Northland Pines High School

Activity	Activity Time (days)	Immediate Predecessor(s)
A	2	---
B	4	A
C	5	A
D	2	B
E	1	B
F	8	B, C
G	3	D, E
H	5	F
I	4	F
J	7	G, H, I

a. Draw the network diagram

b. Calculate the critical path for this project

c. How much slack is in each of the activities G,H, and I?

**Must show work**