Will media consolidation affect public opinion or limit access to a variety of viewpoints

Yes

Explanation:

Studies on mass communication confirm that the media have significant effects on society, although there is hardly a consensus on the nature and extent of such effects. The problem of the degree of influence of the media on individuals and society has had different responses. Most authors confirm that the development of the media achieved the installation of a public agenda in society, that is to say, it is they who have the power to inform or not to society. It is also clear that the information is usually found concentrated in few media and therefore it is these that directly influence the public opinion.

explanation:

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part a. there were 250 teenagers surveyed (100% of tenagers = 250)therefore 1 % = 250/100 = 2.5 76% = 1% x 76 = 2.5 x 76 = 190 teenagers of the 250 surveyed liked burgerspart b: jane surveyed 25% (which is equal to 50 teenagers, i.e. a quarter of the teenagers surveyed is 50) to get 100% we simply get 4 quarters, i.e. multiply 50 by 4 = 200 teenagers were surveyed by jane. part c: it is impossible to give an example where a percentage is greater than 100%, since, by definition , percentage means "per 100".