What is 5 3/5+ 2 4/10

What is the value of x? enter your answer in the box. (cm)

Acircle has a diameter will endpoints of (-2,8) and (6, 4). what is the center of the circle

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?