I only need part b pls help

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

How can the correlation in the scatter plot graph below best be described? positive correlation negative correlation both positive and negative no correlation

Ms. green tells you that a right triangle has a hypotenuse if 13 and a leg of 5. she ask you to find the other leg of the triangle. what is you're answer?