Try another version of this question Box 1: Enter your answer as a number (like 5, -3, 2.2172) or as a calculation (like 5/3, 2^3, 5+4) Box 2: Enter your answer as a number (like 5, -3, 2.2172) or as a calculation (like 5/3, 2^3, 5+4)
The table below gives the annual sales (in millions of dollars) of a product.
year 1998 1999 2000 2001 2002 2003 2004 2005 2006 sales 213 267 309 339 357 363 357 339 309
What was the average rate of change of annual sales
a) Between 1998 and 1999
millions of dollars/year
b) Between 1998 and 2005
millions of dollars/year
Enter DNE for Does Not Exist, oo for Infinity `(267 - 213)/(1999-1998) = 54`
Enter DNE for Does Not Exist, oo for Infinity `(339 - 213)/(2005-1998) = 18`