1. Dr. Romeo stated that his device to enhance hearing heart and breath sounds in a helicopter by using signal filtering failed because the market size was small. Please discuss how the market for such a device could be expanded.
2. A manager wants to increase the productivity of his company by 10%. Currently, he found that the company can produce 200 units in 40 hours. To achieve his goal, the company needs to produce 300 units in how many hours?
3. What are some challenges that an event, which relies heavily on volunteers for manpower, might face?