A manufacturer produces three products (X, Y, Z) with the following constraints:

• Product X requires 2 hours of labor and $3 materials; profit =$50
• Product Y requires 3 hours of labor and $4 materials; profit =$70
• Product Z requires 1 hour of labor and $2 materials; profit =$40
• Available: 100 hours of labor, $150 in materials

Which combination maximizes profit?