Greenhouse gases. The Department of Energy for Country X estimates that halocarbons account for 22%, methane for

15%, nitrous oxide for 6%, and carbon dioxide for 57% of the enhanced heat-trapping effects of greenhouse gases. Use a pie graph to present this data. Find the central angles of the graph.

What central angle should be used for the portion of the chart representing halocarbons?

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(Type your answer in degrees.)