Please Help me on this will give you brainliest.

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 scale for a map is 20 miles = 1/2 inch. the distance between two towns on the map is 3 3/4 inches. what is the actual distance between these towns? 150 miles 38 miles 75 miles 135 miles

Consider the set of all four-digit positive integers less than 2000 whose digits have a sum of 24. what is the median of this set of integers?