A. Find the percent of change in the number of units sold between 2004 and 2006 and between 2006 and
2008 for each format. Round your answers to the
nearest tenth.

b. Tell whether each percent of change in part a is a
percent of increase or a percent of decrease.

c. Did these trends change from 2004 to 2008?
Explain.

Best answer that i found on yahoo ok   set :   x= length of 2nd piece in cm  x- 3= length of 1st piece in cm  x-4= length of 3rd piece in cm  then since you know they all came from the 20 cm ribbon you add them together and set them equal to 20x+ x-3 +x-4 = 20  3x - 7= 20  3x= 27  x= 9  the shortest piece is the third piece which is x- 4  x-4  9-4 = 5  the length of the smallest piece is 5 cm.  the other lengths are  9 cm  6 cm