Bragg's Bakery is trying to build an automated baking facility downtown. The activities and completion times required for this are as follows.~ Activity Priore Normal Emergency Estimated cost- activities. time(week). time(week) per share (in $)- A 3,000 - 3,500 150 4,000 - 34 2,000 - 2,500 - 5,000 a. Draw a project network b. Calculate how long the normal project period is~ c. Calculate the duration of the project if all activities are carried out in an emergency period.~ d. Bragg's loses $3,500 per week before completion of the new facility. Calculate how long you can reduce the emergency costs by paying less than $3,500.~