Queen parallela has 150 meters of fencing to build her pen for the dragon. since she wants to make a rectangular pen, she knows that the area of the pen can be represented as a=lw, where l=length and w=width. she also knows that the perimeter of a rectangle is p=2l + 2w. which expression would represent the length in terms of the width given that the width is x meters? a. 1/2(2x - 150) b. 150 - x c. 1/2(150 - 2x) d. 150 + 2x