Please answer c-f

The project completion date is 12 days

a. Draw a network diagram for the project. b. What is the project completion date? In other words, how many days would it take to complete this project on normal time? c. What is the total cost required to complete this project on normal time? d. If the project had to be completed 2 days earlier, would it help to reduce Activity 5 by two days? e. If Activity 4 is delay by one day, would it delay the project completion date? f. If Activity 2 is delay by five days, would it delay the project completion date