Find the total area of the shaded region

The hawaiian alphabet has 12 letters. how many permutations are posible for each number of letters?

The general form of the quetion of a circle is ax^2+by^2+cx+dy+e=0 where a=b=0 if the circle has a radius of three units and the center lies on the y axis which set of values of a, b, c, d, and e might correspond to the circle

The graph of g(x) is a translation of y = which equation represents g(x)?