Snow, Inc., makes three kinds of snowboards, but it has a limited number of machine hours available to make them. Product line data are as follows:

Wood Plastic Graphite

Machine hours per unit 1.25 1.0 1.5

Selling price per unit $100 $120 $200

Variable manufacturing cost per unit 45 50 100

Variable selling cost per unit 15 26 36

In what order should the snowboard product lines be produced?