Walmark Store compresses and palletizes empty merchandise cartons for recycling. The store generates five pallets a day. The cost of storing a pallet in the store’s back lot is $.10 per day. The company that moves the pallets to the recycling center charges a flat fee of $100 for the rental of its loading equipment plus a variable transportation cost of $3 per pallet. Graph the change in number of pallets with time, and devise an optimal policy for hauling the pallets to the recycling center.