I would say that they should test the water purifier with tap water and run it through the purifier and see if it is actually purifying the water and that way determine if it is performing as it should an if not correct it.
The amount of U.S. exportation has remained smaller since concerning from the year 1980. The U.S import rates decreased for the following sequential year meanwhile 1984, declining 1 .7 percent later a 2.5-percent decrease in 1983. The descending trend in import costs through the year, that was extra broad-based than in 1983 meanwhile aggregate price changes were predominately affected by lowering energy costs.
In this case, even though the initial amount invested is not given, it can be found by subtracting the amount by which the investment appreciated of the year-end value:
The return rate is given by the interest payed added to the amount appreciated, divided by the initial investment:
ANSWER: There are many ways how entrepreneurs benefit the economy. Few of them are
1) Create Jobs: Entrepreneurs create jobs in the community. When someone opens a new business or expands his new business, he will need human resource to help him to do his works.
2) Wealth Creation: Entrepreneurs pool in their own money and attract investment from lenders, banks and other investors. This mobilizes public wealth.
3) Exports: Entrepreneurs after growing in their businesses will want to export their products as a part of extending their market. This will help gain foreign currency in the country.
e. exists when a single seller experiences lower average total costs than any potential competitor.
Explanation:
A monopoly is a market structure which is typically characterized by a single-seller who sells a unique product in the market by dominance. This ultimately implies that, it is a market structure wherein the seller has no competitor because he is solely responsible for the sale of unique products without close substitutes. Any individual that deals with the sales of unique products in a monopolistic market is generally referred to as a monopolist.
For example, a public water supply company is an example of a monopoly because they serve as the only source of water provider to the general public in a society.
A natural monopoly exists when a single seller experiences lower average total costs than any potential competitor because of the very high start-up or initial cost and economy of scale.