Find the least common multiple of the following polynomials: 5y^2 - 80 and y+4. a) (y+4)(y-4) b) (y+4) c) 5(y+10)(y-8) d) 5(y+4)(y-4)

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.