Jason and David went hiking at different times. Jason is currently 54 feet above sea level while David is starting at 11 feet below sea level. What is the difference in their elevations? (Hint: Use the distance equation or draw a number line.
since jason is currently at 54 feet above sea level and David is 11 feet below sea level the add 11 plus 54 which would give you 65 feet is there distance of elevations