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The answer your problem is C
If the market had one supplier that was a monopoly then there would be only one firm operating in the market, with no competition.
In a market, a monopolist tends to charge a price higher and produces fewer units than a competitive market structure. Because of such higher monopoly price, the area of consumer surplus tends to decrease.
The market power of a monopoly affects both consumer and producer surplus as a firm is able to earn positive economic profits, and as it is a monopoly, other firms are unable to enter their market and cannot lead to competition.
Hence, a firm is a monopoly if it can ignore other firms prices.
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Answer:
rate of return: 16.67%
Explanation:
unadjusted rate of return

Average investment
Assuming no salvage value:
(beginning investment + ending investing)/2
(4,800 + 0 )/ 2 = 2,400
<u>cost savings:</u> 720
<u>depreciation:</u> 4,800 / 15 = 320
average return 400
400/2400 = 16.67%
The answer is: her friends also recommend the hotel.
In business perspective, Recommendation from an individual that people trust would generally more believable compared to the words that spoken by the marketers. This perception happen because most costumers generally believe that business establishments would say whatever it needs to obtain customers.