C.Currency
Explanation.
A factor of production is a term used to describe the inputs used in the production of goods and services in order to make a profit.The factors of production are land,capital,labor and entrepreneurship.For example in a capitalist economy, the factors of production are controlled by private individuals for their own profits.
Answer:
The answer is age.
Explanation:
So for a 50-year-old, maximum heart rate is 220 minus 50, or 170 beats per minute.At a 50 percent exertion level, your target would be 50 percent of that maximum, or 85 beats per minute.