Mike buys four equally a price dvds online. each dvd cost the same amount with a $5.98 shipping charge included the total cost came to $79.94 write a word equation you could use to find the cost of each dvd

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.