Astatement sn about the positive integers is given. write statements s1, s2, and s3, and show that each of these statements is true. show your work. sn: 1^2 + 4^2 + 7^2 + . . + (3n - 2)^2 = n(6n^2-3n-1 / 2

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?