Which of the following circles have their centers on the y-axis?

a.(x - 0)^2 + (y - 0)^2 = 44
b.(x + 1)^2 + (y - 7)^2 = 16
c.(x - 4)^2 + (y - 0)^2 = 22
d.(x - 0)^2 + (y + 5)^2 = 74

Hurry and answer this! circle x with a radius of 6 units and circle y with a radius of 2 units are shown which steps would prove the circles similar? translate the circles so they share a common center point, and dilate circle y by a scale factor of 4. translate the circles so the center of one circle rests on the edge of the other circle, and dilate circle y by a scale factor of 4. translate the circles so they share a common center point, and dilate circle y by a scale factor of 3. translate the circles so the center of one circle rests on the edge of the other circle, and dilate circle y by a scale factor of 3

Solve each quadratic equation by factoring and using the zero product property. 14x - 49 = x^2

50 people men and women were asked if they watched at least one sport on tv. 20 of the people surveyed are women, but only 9 of them watch at least one sport on tv. 16 of the men watch at least one sport on tv. make a a two-way table and a relative frequency table to represent the data.