question: The highest temperature ever recorded in Southlandia is -48 degrees Fahrenheit. The highest temperature ever recorded in Northlandia is 21 degrees Fahrenheit. The highest temperature recorded in Midlandia is -3 degrees Fahrenheit. What is the average highest temperature of these 3 countries?
answer: -48 + 21 + (-3) = <<-48+21+(-3)=-30>>-30
  -30/3 = <<-30/3=-10>>-10 degrees
  The average highest temperature recorded in Southlandia, Northlandia, and Midlandia is -10 degrees Fahrenheit.
  #### -10