Solve the lengths of AC and the measure of a and 0

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

What is the best approximation for the area of a circle with a radius of 4 m ? use 3.14 to approximate pi

Which of the following is missing in the explicit formula for the compound interest geometric sequence below?