What is two equivalent fraction of 45/60

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 base of a triangle exceeds the height by 9 inches. if the area is 180 square inches, find the length of the base and the height of the triangle.

Which of these numbers of simulations of an event would be most likely to produce results that are closest to those predicted by probability theory? 15, 20, 5, 10