Please help with 6.5 and 6.6 only

QUESTION 6 [20 marks] Answer the questions 6.4 to 6.6 by referring to table 2 below. 6.1 What is the goal of project crashing? 6.2 What remains unchanged about the project in project crashing? 6.3 Which other technique can be used to shorten project duration? 6.4 What is the initial critical path for the project? 6.5 What is the expected duration of this critical path? 6.6 What is the total cost of the project when crashing the project to 17 days? Show the detailed steps to crash the project