answer quick please

Three activities are candidates for crashing on a project network for a large computer installation (all are, of course critical) Activity details are in the following table a) Activity that should be crashed first to reduce the project duration by 1 day is b) Activity that should be crashed next to reduce the project duration by one additional day is c) Total cost of crashing the project by 2 days =$ (Enter your response as an integer.) Three activities are candidates for crashing on a project network for a large computer installation (all are, of course critical) Activity details are in the following table a) Activity that should be crashed first to reduce the project duration by 1 day is b) Activity that should be crashed next to reduce the project duration by one additional day is c) Total cost of crashing the project by 2 days =$ (Enter your response as an integer.)