Most greatly affected by the inclusion of the coach's time?

Which diagram shows lines that must be parallel lines cut by transversal?

Idon't get undoing if its pass adding and subtracting so can someone ? x-2 over 5 = 18

Last week , donnell practiced the piano 3 hours longer than marcus . together, marcus and donnell practiced the piano 11 hours . for how many hours did each young man practiced the piano