Mathematics, 30.08.2021 03:40, WallaceHarrison123

Melissa and Brian are at the base of a mountain. Melissa hikes to a location 27 meters above sea level. Brian hikes to a location 21 meters below sea level. a. Write an integer to represent each hiker's location with respect to sea level.

b. Write an expression to represent the difference of the hiker's altitudes. Evaluate your expression.

c. Can the integers be subtracted in either order to find the difference? Explain

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Melissa and Brian are at the base of a mountain. Melissa hikes to a location 27 meters above sea lev...