When solving a system of equations algebraically, your final step is -3 = 7. How many solutions does this system have?

Planning for the possibility that your home might get struck by lighting and catch on fire is part of a plan

Can any one me with the answers to these questions asap?

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.