Hey does anyone know the answer to this?!

Pick the description of a geometric object that best matches the real world object box for a deck of card

Which segments are congruent? o jn and ln o jn and nm o in and nk onk and nm

One side of a rectangle is 7 feet shorter than seven times the other side. find the length of the shorter side if we also know that the perimeter of the rectangle is 306 feet.