Mathematics, 31.05.2021 16:40, Teephat

The cost(C) in $ of catering per head in a restaurant with the number (N) of people present is given by C = a + b N . If the cost per head for 10 people is $14 and the cost per head for 20 people is $12, find (to the nearest 10c) the cost per head for 50 people

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The cost(C) in $ of catering per head in a restaurant with the number (N) of people present is given...

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