Hey guys its late and im tired and bored and id. k can somebody like answer with something interesting

Which equations represents circles that have a diameter of 12 units and a center that lies on the y-axis? check all that apply

The manufacturer of a new product developed the following expression to predict the monthly profit, in thousands of dollars, from sales of the productwhen it is sold at a unit price of x dollars.-0.5x^2 + 22x - 224what is represented by the zero(s) of the expression? a.the profit when the unit price is equal to 0b.the unit price(s) when the profit is equal to 0c.the profit when the unit price is greatestd.the unit price(s) when profit is greatest

Give the equations of two different lines that are perpendicular to the line 3x + 4y = 7.