Please help asap only the first one

The tangent of an angle is not which of the following? a) ratiob) proportionc) fractiond) opposite over adjacent

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.

Which image (a’ b’ c’ d’) of abcd cannot he produced using only reflections ?