Please help me with this question for project management. Thank you

Question 1| Draw a network diagram representing the following logic: as the project starts, activities A and B can be performed concurrently. - When activity A is finished, activities C and D can start. - When activity B is finished, activities E and F can start. - When activities D and E are finished, activity G can start. - The project is complete when activities C,F, and G are finished. Draw a network diagram representing the following information: - The project starts with three activities - A, B, and C-which can be done concurrently - When A is finished, D can start - When B is finished, F can start - When B and D are finished, E can start - The project is complete when C, E, and F are finished. Draw a network diagram that represents the following IS development task list. - Activity Immediate predecessor activity - Activity 1 - Problem - - Activity 2 - Study current system 1 - Activity 3 - Define user requirements 1 - Activity 4 - Logical system design 3 - Activity 5 - Physical system design 2 - Activity 6 - System development 4,5 - Activity 7 - System testing 6 - Activity 8 - Convert database 4,5 - Activity 9 - System conversion 7,8