The perimeter of a triangle is 28 ft. the medium side is 4 ft longer than the shortest side, while the longest side is twice as long as the shortest side. what are the lengths of the three sides?

Points j and k plotted on the coordinate grid are two vertices of rectangle jklm rectangle jklm has an area of 7 square units point j is located at 2,1 and point k is located at -5,1 each vertex of the rectangle is located at a point that has integer coordinates. what is the perimeter of rectangle jklm? (need answer asap)