Can someone help me please

12. decide whether each statement is always true, sometimes true, or never true. a. when corresponding points of an original figure and its reflection are connected, the resulting segments are all perpendicular to the line of reflection. b. when a point is reflected over a horizontal line, the y-coordinate of the point stays the same. answer both questions and explain

Simplify (a/b - b/a) times (a - a^2/a+b) a - a^2/a=b is a mixed number

Need ! discuss how to convert the standard form of the equation of a circle to the general form. 50 points