Answer:
50% share.
Explanation:
Given:
There are only three firms in a market.
The largest firm has sales of $500 million.
The second-largest has sales of $300 million.
The smallest has sales of $200 million.
Question asked:
The market share of the largest firm is ?
Solution:
As we know:

Total sales of the largest company = $500 million.
Total sales of the market = Sales of largest firm + Sales of second largest firm+ Sales of smallest firm
Total sales of the market = $500 million + $300 million + $200 million
= $1000 million


Therefore, the market share of the largest firm is 50%.
If the new advertising will cost $9,000 more, but will increase revenues by $20,000 there would be a $11,000 increase in net operating income.
In this case, since the revenue outweighs the cost, you would increase the advertising expenditure.
Oswen Technologies Inc. is a software development company that spent a lot of money on advertising software products that were not in the market. The software products advertised before their availability are termed Vaporware.
<h3>What do you mean by technology?</h3>
Technology refers to the application of scientific knowledge for practical purposes in the industry.
Oswen technologies Inc. a software development company conducted a market survey to understand its customer base. The software products advertised before their availability are termed Vaporware.
Learn more about technology here:
brainly.com/question/15059972
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