\BOOKMARK [0][-]{chapter.7}{Chapter 7. Test}{}% 1
\BOOKMARK [1][-]{section.7.1}{7.1. Rates}{chapter.7}% 2
\BOOKMARK [1][-]{section.7.2}{7.2. Reading your electricity bill}{chapter.7}% 3
\BOOKMARK [1][-]{section.7.3}{7.3. Linear functions}{chapter.7}% 4
\BOOKMARK [1][-]{section.7.4}{7.4. Linear functions in a spreadsheet}{chapter.7}% 5
\BOOKMARK [1][-]{section.7.5}{7.5. Which truck to rent?}{chapter.7}% 6
\BOOKMARK [1][-]{section.7.6}{7.6. Energy and power}{chapter.7}% 7
\BOOKMARK [1][-]{section.7.7}{7.7. Federal payroll taxes}{chapter.7}% 8
\BOOKMARK [1][-]{section.7.8}{7.8. Exercises}{chapter.7}% 9