A.Maintain project billing

B.Create billing proposal

C.Plan work packages and efforts

D.Create customer invoice

E.Maintain project staffing

A.Manage Resource Utilization

B.Manage Project Staffing

C.Manage Project Assignments

D.Manage Resource Requests

A.Available hours = Staffed hours - Free hours

B.Available hours = Free hours - Staffed hours

C.Free hours = Staffed hours - Available hours

D.Free hours = Available hours - Staffed hours