Which label on the cone below represents the radius

How can we find the measure of an exterior angle if we know the measurement of an interior angle

If you could answer these your a life saver

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.