I need help solving the last two questions on this problem. I am struggling with the formula to find it so excel would be very helpful as an answer format :) PM.66 Real estate developer Russell Call was working with a few contractors to make a number of improvements to one of his rental properties. After gathering information from these contractors he determined the following durations, predecessors, and costs of all the required activities:

PM.66 Real estate derelaper Russell Call was working with a few contracters to make a number of improvements to one af his rental properties. After gathering infarmation from these contractors he determined the fallawing durations, predeoessors, and costs of all the required activities: What is the ovorall duration of the project? Which of the following activities has the lawest crash oost per woek? Which of the following activities has the highest crash oust per woek? If you wanted to sharten the overall duration of the project, which activity should you crash first? What is the total cost of crashing the projoct from its current duration down to 11 woeks? What is the total cost of crashing the projoct from its original duration to 9 weeks