What is the gradient of a line perpendicular to a line with a gradient of -6

Rectangle leg this 11feet and perimeter of 38feet what is the width of the rectangle in feet

The rectangle shown has a perimeter of 108 cm and the given area. its length is 6 more than five times its width. write and solve a system of equations to find the dimensions of the rectangle.

A(1,1) b(-3,0) c(-4,-1) d(3,-2) drag it to correct position