Triangle ABC has side lengths 25, 17, and 12. F is the center of the circle that goes through points A, B, and C. D is the center of the circle inscribed within triangle ABC. G and H are the midpoints of AC and BC respectively, and they concur at J. Find the perimeter and area of DJF.

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Solve the triangle. a = 21°, c = 105°, c = 5

David estimated he had about 20 fish in his pond. a year later, there were about 1.5 times as many fish. the year after that, the number of fish increased by a factor of 1.5 again. the number of fish is modeled by f(x)=20(1.5)^x. create a question you could ask that could be answered only by graphing or using a logarithm.