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Use the elimination method to solve the systems of equations.choose the correct ordered pair. 7x+4y=39

How do the number line graphs of the solutions sets of -23 > x and x-23 differ?

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.