CS 10051 Sectios 009/010
		     Homework 3

   Due in class on Thursday, April 30-eith. Each question is worth 2
   points.  The exercises are from the textbook (4th edition)

Chapter 6 exercises  6.9, 6.12, 6.13
Chapter 7 exercises: 1, 8, 15, 
Chapter 8 exercises: 12, 13, 17, 18, 20, 22, 25, 27, 30