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Which shows the image of rectangle ABCD after the rotation (x, y) - (-y, x)?

How many days was the temperature above 90 degrees?

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

Ineed big ! the cost of a school banquet is $25 plus $15 for each person attending. create a table, sketch the graph, and write an equation in slope-intercept and point-slope form that gives total cost as a function of the number of people attending. what is the cost for 77 people?