If y varies inversely as x and y = 3 when x - 4, then y = 12 when x = 15. Please select the best answer from the choices provided
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The figures below are made out of circles, semicircles, quarter circles, and a square. find the area and the perimeter of each figure and give your answers as a completely simplified exact value in terms of π (no approximations).

The figure shows the front side of a metal desk in the shape of a trapezoid. what is the area of this trapezoid? 10 ft²16 ft²32 ft²61 ft²

What is the area of the original rectangle? 8 cm² 20 cm² 25 cm² 40 cm²