I need answer for this question please,

Consider the following project activities! ACTIVITY IMMEDIATE PREDECESSOR TIME (WEEKS) A B D E F G A A B, D D EF 6 3 7 2. 4 3 7 Questions: 1. Draw the project network diagram. 2. Identify all the paths through the network and their lengths. Example: A -> B.... --> G = weeks. c. Define the critical path in English using your own words. Identify all the critical activities and path(s). How long will it take to finish the entire? 4. Calculate the slack of each of the following 3 activities: B, E, and F. You don't need to calculate ES, EF, LS, and LF. 5. Give 3 reasons as to why project scheduling is not done well