In addition to mathematics and statistics, the arithmetic mean is used frequently in many diverse fields such as economics, anthropology, and history, and it is used in almost every academic field to some extent. For example, per capita income is the arithmetic average income of a nation's population i think
Answer:
the second one
Step-by-step explanation:
Answer:
never
Step-by-step explanation:
This is subtraction property of equality.
Answer:B)