Write the equation in equivalent ax+by=c form y=4x-2

At 6 1/2 cents per pound of string beans how much does 7 pounds cost

Create a question with this scenario you could ask that could be answered only by graphing or using logarithm. 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.

How is this equation completed? i cannot find any examples in the book.