Can someone show me how to do this problem? steps with explanations please

Will rate a thumb up for good response thanks so much!

Development of Version 2.0 of a particular accounting software product is being considered by Jose Noguera's technology firm in Baton Rouge. The activities necessary for the completion of this project are listed in the following table: Normal Time (weeks) 4 Crash Time (weeks) 3 Normal Cost Activity A B C D 2 1 Total Cost with Immediate Crashing Predecessor(s) $2,700 $3,000 $750 $2,600 A $1,175 B $4,600 C $2,100 D, E 3 3 8 $2,000 $2,200 $750 $2,300 $800 $3,200 $1,600 4 E 6 3 F 3 2 G 4 2 a) Based on the given information regarding the activities for the project, the project length = weeks. b) The total cost required for completing this project on normal time = c) For reducing the duration of the project by one week, the activity that should be crashed first is activity The cost of the project based on the first activity selected for crashing will increase by $ d) The maximum weeks by which the project can be reduced by crashing = weeks. Total cost of crashing the project to minimum (or maximum weeks possible) = $ Enter your answer in each of the answer boxes