Below you will find answer keys to the exercises at the end of each lesson. Simply click the title (e.g. Lesson 61) to download a PDF version of the answer key.
Solutions to the exercises from section 4.1
Solutions to the exercises from section 4.2
Solutions to the checkpoint questions (p. 287 - 290)
Solutions to the exercises from section 4.3
Solutions to the exercises from section 4.4
Solutions to Supplemental Worksheet #12
Solutions to Supplemental Worksheet #13
