Decision Support Systems

PLEASE DON'T BID BERORE YOU READ I need to check exercises in chapter 2 and 3. Also I want to solve exercises in chapter 4 and 5 except exercise 17 in chapter 5. I need all the exercises to be done by September 5th at 6pm in atlantic standard time. Chapter 2, Section 2.7.2, Exercises: 8,15 Chapter 3, Section 3.5.2, Exercises: 12,25 Chapter 4, Section 4.11.2, Exercises: 7,18,30 Chapter 5, Section 5.7.2, Exercises: 7,17,25