Need some help please, thanks.

What is the minimum cost of crashing the following project that Roger Solano manages at Slippery Rock University by 4 days? Normal Crash Time Normal Total Cost Immediate Activity Time (days) {days} Cost with Crashing Predecessos} A 4 3 $800 $1 ,1 00 B 8 6 $250 $600 C 4 3 $600 $650 D 7 5 $750 $1,500 A E 8 5 $1200 $1650 C By hon.r many days should each activity be crashed to reduce the project completion time by 4 days? Fill in the table below. (Enter your responses as whore numbers.) Each Activity Should be Reduced BY Activity {days} A B c D E The total cost of crashing the project by 4 days is $ . (Enter your response as a whoie number.)