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Use set builder notation to represent the following set: { -3, -2, -1, 0}

Which ahows the graph of the solution set of 6x+4y< 12

During the election for class president, 40% of the students voted for kellen, and 60% of the students voted for robbie. 500 students voted in total. how many more students voted for robbie than for kellen? answer with work : )