Use the information given to answer the question. A construction company buys various materials for building projects. The table shows the costs for various pounds of the materials. Material Weight Cost concrete 80 pounds $4.80 steel 160 pounds $120.00 wood 12 pounds $3.48 The company’s Chief Financial Officer plots material costs on a graph, where the x-axis represents the number of pounds of material bought, and the y-axis represents the total cost of the purchase, in dollars. Given that the cost per pound is proportional, complete the table to indicate which ordered pairs could represent material purchases of concrete, steel, and/or wood.