> Next question Get a similar question You can retry this question below The table below gives the annual sales (in millions) of a product. year 1998 1999 2000 2001 2002 2003 2004 2005 sales 138 192 234. 264 282 288 282 264 234 2006 What was the average rate of change of annual sales a) Between 1998 and 1999 54 millions of dollars/year b) Between 1998 and 2006 millions of dollars/year