A 21.15 g piece of iron and a 25.05 g piece of gold at 100.0 degreesC were dropped into a 720.0 mL of water at 18.45 degreesC. The molar heat capacities of iron and gold are 25.19 J/(mol degreesC) and 25.41 J/(mol degreesC), respectively. What is the final temperature of the water and pieces of metal?