Hy$-$Vee has listed a number of activities that must be completed to build their second location on Battlefield St$.$ in Springfield, MO$.$ The activities, immediate predecessors, and times appear in the accompanying table.

a$)$ Develop an AON network for this problem.

b$)$ What is the critical path?

c$)$ What is the total project completion time?

d$)$ What is the slack time for each individual activity?