The product of 9 and c

7x+8y=-18, 4x-9y=-3 solve the system of equations

How many lines can be drawn through points j and k? 0 1 2 3

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.