Each can of paint will cover 450 tiles. augustin is painting 300 tiles in his bathroom,675 in his kitchen and 100 in his hallway . how many cans of paint does he need to buy

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)