En un estadio de fútbol pondrá el césped para mejorar las condiciones pero necesita calcular el aire para saber cuánto comprar el terreno mide 18 km de ancho por 25 km de largo cuanto mide el área del terreno

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)