1) UTD lab produces 4 high tech product types. Each of the products must be wired, drilled, assembled and checked for quality standard before being delivered to consumers. The time requirement and profit for each product are as follows. Product A: 0.5 hr for wiring, 3 hrs for drilling, 1 hr for assembling, and 0.5 hr for inspection. One product A can be sold for $10 per unit. Product B: 1.5 hr for wiring, 1 hrs for drilling, 3 hrs for assembling, and 1 hr for inspection. One product B can be sold for $13 per unit. Product C: 1.5 hr for wiring, 2 hrs for drilling, 3 hrs for assembling, and 0.5 hr for inspection. One product C can be sold for $16 per unit. Product D: 1 hr for wiring, 3 hrs for drilling, 2 hrs for assembling, and 0.5 hr for inspection. One product D can be sold for $12 per unit. The maximum capacity for wiring, drilling, assembly, and inspection are 1500 hrs; 2350 hrs; 2600 hrs; and 1200 hrs respectively. UTD lab requires that there will be at least 150 units of A, 100 units of B, 300 units of C, and 400 units of D being produced. In addition, UTD lab wants that total production of products A and B accounts for at least 40% of total production. Formulate the linear programming problem to maximize the profit and satisfy the production constraints