Solve this word problem leading to quadratic equation. a certain number is subtracted from 18 and from 13. the product of the two numbers obtained is 66. find the first number

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)