Is 0.3/0.9 rational or irrational

An angle that measures between 90 and 180° is called a(,

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.

Find the solution(s) to x^2-14+49=0