Compute the average hourly cost of a carpenter to a contractor. assume the work is in a subsistence area and the daily subsistence rate is $19.50. the carpenter works the second shift on a two-shift project where a project labor contract establishes a "work 7 pay 8 hour" pay basis for straight time. he works 6 days, 10 hours a day. in addition to time and a half for overtime monday through friday, the contract calls for double time for all work on weekends