this is the full question, please forward to the relevant team.

it's a question from the textbook namely, Project Management in Practice.

2. Given the following project all times are in days): Actt- Prede- Normal Normal Crash Crash vity cessor Time Cost Time Cost $50 $150 a, ul 50 4 290 100 180 ef a. Draw the network (AOA or AON) and find the critical path time, and cost for an all-normal level of project activity. b. Calculate the crash cost-per-day (all activities may be partially crashed). c. Find the optimal way of getting an 18-day delivery time. What is the project cost? d. Find the optimal way of getting a 16-day delivery time. What is the project cost? e. Calculate the shortest delivery time for the project. What is the cost