please use explanation when answering

Constrained Resource Leo Inc. Assume the factory has total machine hours of 10,000 hours. Assume market demands for LX4, EX6, and RX 8 are 3,000 units, 8,000 units, and 5,000 units, respectively. 1. How many machines hours should be spent on each product? 2. How many units should be produced for each product? 3. What if the market demands for LX4, EX6, and RX8 are 4,000 units, 11,000 units, and 8,000 units, respectively