Redwood Industries makes two products - benches and picnic tables. Two inputs are needed for this problem - labor hours and a supply of redwood lumber. Each bench takes four labor hours and ten feet of redwood. Each table takes six labor hours and 35 feet of redwood. There are 1,200 hours of labor available and 3,500 feet of redwood. Set up the formula and solve using both the graphical and equation method. What is the optimal combination from a production efficiency standard?