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Answer:
b. Noise
Explanation:
Although there are other factors that may act as barriers to effective communication. However the most likely factor here is noise.
It is most likely that when Mary was stating that a dozen cookies cost $2.99, the newspaper staff was affected by noise coming from people or the printing press machines and thought he had heard $29.90.
Crusoe's opportunity cost for producing a pound of berries would be 0.4 pounds of fish.
<h3>What is the opportunity cost of the fish?</h3>
This can be found as:
= Change in quantity of fish / Change in quantity of berries
Solving gives:
= (30 - 26) / 52 - 42
= 4 / 10
= 0.4 pounds of fish
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