AC is a diameter of circle R. Find the measure of minor arc AB

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

The parabola y = x² - 4 opens: a.) up b.) down c.) right d.) left

Every weekday, mr. jones bikes from his home to his job. sometimes he rides along two roads, the long route that is shown by the solid lines. other times, he takes the shortcut shown by the dashed line. how many fewer kilometers does mr. jones bike when he takes the shortcut instead of the long route?