A landscaper is designing a garden for a customer at the corner of the customer's property where two fences meet. The cost of topsoil is $10 per square foot. The landscaper has two designs: 0 The rst design for the garden is a simple rectangle with one side measuring 3 feet and the other side measuring 10 feet. 0 The second design has a curving contour such that the garden's edge follows along the equation 3; = 3m2 + 62: + 9 where the yaxis and m-axis are the fences. If cost is a limiting factor for the customer's decision, which design should the customer pick? Use calculus to justify your response