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Considering that in Brazil, the scale used in everyday life is Celsius, and in the United States, Fahrenheit, answer the following questions. a) Informed that the temperature in Brazil is 20 °C, the American tourist asks the travel agency attendant what the equivalent temperature is on the Fahrenheit scale. What should the attendant answer? b) A Brazilian woman traveling on business is informed that she will arrive in the United States under scorching sun and that the temperature the previous week had reached 104 °F. Using a piece of scratch paper, she quickly converts the value to the Celsius scale. What value does she get?