Advent Health & Walt Disney World have partnered to host the Walt Disney World Marathon. Organizers identify 7 key activities required to prepare for the event. Activity Duration in weeks Immediate Predecessor(s) Max Weeks Can Be Crashed Crash Cost: $ per week A 7 - 3 19,000 B 14 A 2 38,000 C 7 A 3 45,000 D 9 B, C 1 43,000 E 5 D 3 4,000 F 6 D 3 7,000 G 11 E, F 1 40,000 Calculate the initial length of the project using the normal times. By how much should each activity be crashed to reduce the length of the project by 2 weeks at minimum cost? Compute the total incremental cost of crashing the project by 2 weeks