Mathematics, 14.07.2019 04:00 kyleemarie2003

If a positive number represents above sea level and a negative number represents below sea level, (a) use a directed number to represent each of the following situations: (i) 15 m above sea level, (ii) 10 m below sea level: (b) describe the meaning of ‘-21 m’.

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If a positive number represents above sea level and a negative number represents below sea level, (a...