1. Read pages 153 to 162 for descriptive information only. You do NOT need to know how to do the math problems in this section but you DO need the descriptive information in these pages.
2. For pages 163 to 180 you need to know both the descriptive and the math problems. ( One exception, you do not need the the grey box on the bottom of 164-65.)
3. pages 181 to 186 descriptive info only.
4. page 186 KNOW this problem
