1. One of the lowest places in Europe is 23 feet below sea level. We can use “-23 feet” to describe its elevation, and “ feet” to describe its vertical distance from sea level. In the context of elevation, what would each of the following numbers describe?
   1. 37 feet
   2. feet
   3. -6 feet
   4. feet
2. Water freezes at 0 degrees Celsius. For each pair of temperatures, which temperature is closest to the freezing point of water? Use absolute value to explain your reasoning.
   1. or
   2. or
   3. or

Find the value of these expressions.