How do you prove that this figure is a quadrilateral?
the points are a(1,3) b(3,5) c(9,1) and d(7,1)

Is the square root of 4 plus the square root of 16 rational?

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.

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