Lowest denominator 1/15 9/5 3/8

Idon’t understand this.. will someone ? will mark brainliest along with 20 points.

Ab based on the given diagram, if m_1 = 60° then m 2 = 30 60 90 180

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.