A barter is negotiating the trade of one good to another. this is easier with coins because is has the same worth for everyone, whereas if goods were being negotiated, it would be more difficult because the worth may vary from person to person.
Answer:
is not useful for testing hypotheses.
Explanation:
Focus group: The term "focus group is defined as one of the different groups that are being used in the "traditional market research" in order to collect different attitudes and opinions of target or desired audience related to a few specific products, concepts, or services.
A company or an organization can use a "focus group" to gather or collect various customers feedback associated with a brand new service or product before the organization or the company decides to take the service or product into development.
I believe the answer is: <span>syntax
</span>In English language, <span>syntax refers to the words arrangement that make a sentence considered 'well-formed' and could be understood.
For most children, the development of </span><span>syntax could only appear when they're 5 years old or older.</span>
D. A decrease in productivity
