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Edward started his hike at an elevation of 115 feet below sea level. Throughout the hike he ascended 320 feet and then descended 676 feet. How much did his elevation change?

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Answer: - 471 feets

Step-by-step explanation:

Given the following :

Starting point = 115 feets below sea level

Total number of feet ascended = 320 feets

Total number of feets descended = 676 feets

115 feets below sea level = - 115 feets

Change in elevation:

Starting position + ascension - descent

-115 feets + 320 feets - 676 feets

= - 471 feets

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