I need help with these questions in Geometry about equations in circles. Please provide an explanation on paper for each solution so I can better understand and study them. Thank you!

Review equations of Circles Equations of Circles Write the equation of each circle. 1. center at origin, radius 6 2. center at (0, 0), radius 2 3. center at (4, 3), radius 9 4. center at (7, 1), diameter 24 5. center at (4, 71), radius 10 6. center at (5, 72), diameter 6 7. 8 10. For each circle with the given equation, state the coordinates of the center and the measure of the radius. Then graph the equation. 11.x2 + y2 = 16 12. (x - 1)2 + (y -4)2 = 9 O 13. x2 + y2 = 25 14. (x - 2) 2 + (y - 3)2 =4 O Find the center and radius of each equation. 15. x2 + 6x + y2 - 4y + 23 = 35 16. x2 + y2 + 4x + 2y + 5 = 64