Barter system- A method of exchange when no money is involved.
B and C can't be the answers because they are not exchanging anything.
D can't be the answer either because there is money involved.
So your answer is A) You trade an apple for a banana at school. because you are exchanging something with someone for something else thats not money.
Hope this Helps!!
<span>False. You should always wear a lifejacket on a boat, unless you are on a cruise ship or a ferry, because you never know when you might get into danger and end up in the water, for example if the boat capsizes.</span>
A lot of Sports often has captains. At the captains' meeting, the first thing a referee should do is remind the players that jewelry is allowed during warm-ups, but not in course of the match.
- He or she is known to be responsible for ensuring that the teams' uniforms are legal.
There are different things a referee should do at the conclusion of the captains meeting in volleyball.
Note that at the conclusion of the coaches- captains' meeting, referees often discuss the time to start the warm-up and gives room for the team to not carry fault to the court and then they start to warm-up on their own side of the court until the other team is there, at which time the clock should begin.
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The correct answer is C.
A monopoly is a market structure where a single firm serves the whole demand of a specific good or service. It does not face competitors, therefore, such firm has absolute market power to decide the price charged for its products.
So, the monopoly is able to charge a higher price than in a perfect competition scenario where the price would be set at the intersection betweeen the demand function and the marginal cost function.
Instead, the quantity sold in the monopoly (<u>q*) is determined by the intersection of the marginal revenue and marginal cost curves, and the monopoly price is computed by substituting q* in the expression of the demand function </u>(because the demand function relates price and quantity).
<u>The result is 15$ as the picture shows. </u>
The holy trinity is a Christian belief that God, Jesus, and the Holy Spirit are all one