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If you answer 2+2 you will get over 80 points

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.

What is the slope of any line parallel to the line 8x+9y=3 in the standard (x,y) coordinate plane?