Question 1102344
p, perimeter
w, width
L, length
{{{system(w+L<=48,L>=(w-4)^2)}}}
Also
{{{system(w>0,L>0)}}}



(attempt at a )graph may help:

{{{graph(400,400,-2,50,-2,50,y=-x+48,y=(x-4)^2)}}}
Acceptable region is above the parabola, to the right of the y-axis and below the line.  y-axis is for length and x-axis is for width.