
Find the overall change in elevation using given data.

Answer to Problem 25PPS
Sally hikes the elevation at
Explanation of Solution
Given:
Sally starts hiking at an elevation of
Calculation:
Starts hiking at an elevation
Descends
Climbs
Descends again
Now the expression is
Use the following rules and find the result of the given expression.
Remove parentheses.
So the answer will be with a positive sign.
Hence the Sally hikesthe elevation at
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