Jerry hiked along a path. From his starting position, he hiked downhill to a valley where the elevation dropped 25 meters below his starting position. Then, he hiked up to a hill that was 40 meters higher than the valley.
The following equation describes this situation.
−25+40=15
What does 15 tell us?

C. i believe it is (5×(-20))+(100×(0.7))

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