To do the homework, you will need your textbook and some kind of spreadsheet software (Excel, Libreoffice, or Google Docs should all work). Let me know if you don't have access to one or the other.
These five problems: 21.27, 21.43, 21.48, 21.51, 21.52
These four problems: 22.28, 22.31, 22.38, 22.44
These four problems: 23.21, 23.23, 23.26, 23.28