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5. (Chapter 12) Estimate the total direct cost, cost per linear feet, and cost per 1,000 bf of lumber for furnishing and installing the lumber studs of size 26 and length 8ft long in exterior wall of building size 150ft200ft. The studs are spaced at 16 inches on centers with one bottom plate and two top plates. Each comer consists of 4 studs. Assume 45 minutes efficiency factor. Use the labor hours required to install lumber stud provided in the class. The cost of lumber, carpenter, and helper is $0.70/bf,$30.00/hr, and $18.00hr respectively. (15 points)