Solve for x -7=2x+3 simplify the equation as much as possible

Find the value of tan theta if sin theta = 12/13 and theta is in quadrant 2

If g(x) is an odd function, which function must be an even function?

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