Help and thankyou

What is the slope of the line?

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

Solve the given system of equations. 2y= -x+9 , 3x-6= -15

What is the factored form of the following expressions? d^2 – 13d + 36