11-28 Bowman Builders manufactures steel storage sheds for commercial use. Joe Bowman, president of Bowman Builders, is contemplating producing sheds for home use. The activities necessary to build an experimental model and related data are given in the following table: ACTIVITY NORMAL TIME CRASH TIME NORMAL COST ($) CRASH COST ($) IMMEDIATE PREDECESSORS A 3 2 1,000 1,600 B 2 1 2,000 2,700 C 1 1 300 300 D 7 3 1,300 1,600 A E 6 3 850 1,000 B F 2 1 4,000 5,000 C G 4 2 1,500 2,000 D, E What is the project completion date? Formulate an LP problem to crash this project to 10 weeks