The perimeter of a rectangle is 112 cm. if the length is 30 cm, how wide is the rectangle?

Ou have a 20-ounce bottle of juice. you pour out 14 of the bottle to share with a friend. if you pour out 3 ounces for yourself, what fraction of the 20 ounces will be left in the bottle? clear check 35 25 12 1320

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)

Can you me find the missing length. i attached an image.