2a).How do managers solve problems and make decisions? Identify any three (3) quantitative tools that are used in aiding the process.

b) .James, your big brother just graduated with a second class degree in software engineering. He has been employed by Total Ghana. On the first day of work, as part of his orientation, he was introduced as the new manager in charge of the fleet management software department. During lunch time he had a call from your mum about his new job. James told mum he is the manager of fleet management software department. Your mum called you on phone and asked you to explain the following: (i) who is a manager? (ii). what are his functions? (iii) are the any levels?