A diver begins at sea level and dives down 200 feet. He ascends at a steady rate of 12 and one-third feet per minute for 4.5 minutes. Which of the following numerical expressions represents the final depth of the diver?
200 + 12 and one-third(4.5)
200 – 12 and one-third(4.5)
–200 + 12 and one-third(4.5)
–200 – 12 and one-third(4.5)