Y÷15=9 what does y equal hurry extra points need answer asap

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

What are the measures of ∠a, ∠b, ∠c and ∠d? explain how to find each of the angle measure.

Without multiplying, tell which product is larger and why. 5 × 1/3 or 5 × 2/3 a)5 × 1/3 because 1/3 is less than 2/3 b) 5 × 1/3 because 1/3 is greater than 2/3 c) 5 × 2/3 because 1/3 is less than 23 d) 5 × 23 because 1/3 is greater than 2/3