The term commercial refers to activities of commerce, business operations intended for an exchange on the market with the goal of earning profits. The non-commercial activity also exists in the form of non-profit organizations or government agencies. Hope this helps you!
I believe the answer is B, although im not exactly sure what a skin fold test is for, im sure this is the right answer.
Marks your distance in order to track calories lost
Answer:
Cardiovascular, aerobic ex
Explanation:
They are personal
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