This year, a farmer planted 400,000 corn stalks. last year the farm planted 275,650 corn stalks. how many more corn stalks did the farm plant this year than last year?

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)