The lowest point of the run is 55 m above sea level, and the highest point is 229 m above sea level. Let h represent the height in m above sea level. (i) Explain what the inequality h 229 means in this practical context. [1] (ii) Draw a number line to illustrate the range of heights above sea level encountered on the run. [1] (iii) Give a double inequality, using h, to describe the range of heights above sea level encountered on the run.