Express the ratio in colon form and fraction form. Colon Form
Fraction Form
1.3 pencils, 5 papers
Ratio of papers to pencils
2. 5 windows, 2 doors
Ratio of windows to doors
3. 2 losses, 10 wins
Ratio of wins to losses
4. 8 dogs, 12 cats
Ratio of cats to dogs
5. 15 boys, 25 girls
Ratio of boys to girls

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

Ibelieve it's a. 2.2 - x = -10.85 (plz tell me if it's right : ) )