Which equation in point slope form represents a line with m=-15 that goes through the point (7,-1)

Another type of subtraction equation is 16-b=7. explain how you would sole this equation then solve it.

△def is similar to △stu. write a proportion that contains st and su.

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)