$\backslash$table$[[$Activity$,$Crash Cost per Week,Maximum Weeks to Crash$],[$A$,$$$85,000,2],[$B$,$$$35,000,1],[$C$,$$$90,000,1],[$D$,-,0],[$E$,$$$60,000,2],[$F$,$$$80,000,2],[$G$,$$$65,000,1],[$H$,-,0],[$I$,$$$70,000,1]]$

a$.$ Determine the most economical way to crash the project duration by two weeks. What is the incremental cost to complete this project two weeks earlier? $(12$pt$)$