{"type":"rich","version":"1.0","title":"FDWK p66-67 #37-40 worked out solutions","html":"<iframe src=\"https://www.desmos.com/calculator/8zfbc4n6gv?embed\" width=\"500px\" height=\"500px\" style=\"border: 1px solid #ccc\" frameborder=0></iframe>","width":500,"height":500}