Starting at Westlake, you walk 1,600m North on Union Rd to get to CVS. Your friend then texts you that Publix is having a sale on Takis, so you head 320m West to meet him. After that, you head 2,900m East to the Citgo for a soda. Suddenly, you realize you forgot your wallet at school and wonder, “How did I buy all that stuff?” and run 3,000m Southwest back to Westlake. What is your displacement?