At-shirt at a department store cost $5.50. the total cost, in dollars, of a t-shirt is given by the function c(a) = 5.50a. t-shirts 1 t-shirts 2 t-shirts 3 t-shirts each t-shirt costs $ so the common difference is

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