Suppose someone throws a dart at this target. assume the dart will hit the target, with all points equally likely to be hit. what is the probability, that a given dart will land in the black area? in the white area? in the green area? explain your answers.

Assuming you want ones answer in a fraction. Your answer is 1/3. With the info given you stated they will all be "equally likely to be hit" there is 3 approaches. The black, the white, the green. To make it equal it has to be in a 3rd. So, a third of 3 is 1/3.