As you go higher up on a mountain, the climate always becomes a. drier b. hotter c. colder d. wetter

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1/2+1/6-3/4 simplify the given expression leaving the answer in improper fraction form.

Renee hiked for 6 3 /4 miles. after resting, renee hiked back along the same route for 5 1 /4 miles. how many more miles does renee need to hike to return to the place where she started? represent your answer as a simplified mixed number, if necessary.