A company sells two types of vacuums, The L8 and the XL with a profit contribution of $90 and $125, respectively. To assemble the L8, each unit consumes 2.5 pounds of aluminum and 45 minutes of assembly time. The XL consumes 3.5 pounds of aluminum and 1.25 hours of assembly time. The company has 200 hours of labor time available each week. Their current aluminum supplier can only provide 500 pounds of the type of aluminum the company uses. How many units of each model should the company produce each week to maximize its weekly profits? (Find profit, optimals, constraints, and objective variables)