There are approximately 7.7 billion humans on earth. If the virus spreads beyond the 200 person town, how long will it be until everyone on the planet is infected

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)