Quadrilateral GHIJ is similar to quadrilateral KLMN. Which is the length of the line segment that corresponds to line segment IJ?

If you could answer these your a life saver

Aword processing program requires a 7- digit registration code made up of the digits 1,2,4,5,6,7 and 9 each number has to be used and no number can be used mor than once how many codes are possible

Stefanie is painting her bedroom. she can paint 2 1/3 square feet in 4/5 of an hour. how many square feet can she paint in one hour?