The dimensions of a rectangle are given in terms of x as shown below. x-1/2 2x + 4 molly finds the perimeter to be 2(2x +4)+2(x-1/2). noah finds the perimeter to be 2(2x +4+x - 1/2). clara finds the perimeter to be 4x+8+2x-1/2. who correctly found an expression that represents the perimeter of the rectangle? a. molly and clara b. noah and clara c. molly and noah d. molly, noah, and clara