Maximizing area. Grayson Farms plans to enclose three parallel rectangular livestock pens within one large rectangular area using 600 m of fencing. One side of the enclosure is a pre-existing stone...

Extracted text: Maximizing area. Grayson Farms plans to enclose three parallel rectangular livestock pens within one large rectangular area using 600 m of fencing. One side of the enclosure is a pre-existing stone wall. a) If the three rectangular pens have their longer sides parallel to the stone wall, find the largest possible total area that can be enclosed. b) If the three rectangular pens have their shorter sides perpendicular to the stone wall, find the largest possible total area that can be enclosed.