Last year, Kimberly sold 95 boxes of cookies. This year, she wants to sell 20% more boxes than she sold last year. How many more boxes will Kimberly have to sell this year
to reach her goal?

She would need to sell 19 more boxes in order to sell 20% more boxes.

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