16. 6.47% or 6.5%

17. y=3.8 – 0.6x

18. (a) 9,900 km     (b) x = number of km driven, slope= $/km     (c) -$1,250     (d) 19,900 km

19. (a) 40,000 calendars; $384,000; 66.7% of capacity     (b) 55,000 calendars     (c) $116,000      (d) $12/calendar

20. (a) $3,187.50      (b) 36.25%     (c) 5.8824% (or 5.88)     (d) $4,800

21. 175 minutes

22. 48.7%

23. $1,960

24. $1,200

25. $35,000

26. $375

27. $595

28. 23.4%

29. slightly more than 3.78%

30. $1,635.04

 

(source)