Sally buys a coffee table for $300. She refinished it and then sells it for $405. What is the percent increase

Which number is irrational? a) 16 b) 18 c) 25 d) 36

Y=(x+3)(x-4)(x+1)^2 sulutions? multiplicity?

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.