Three teachers have purchased candy for a school carnival. each bag of candy weigh is 1 1/4 pounds

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If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).

Need ! the total ticket sales for a high school basketball game were $2,260. the ticket price for students were $2.25 less than the adult ticket price. the number of adult tickets sold was 230, and the number of student tickets sold was 180. what was the price of an adult ticket?