These are Graph Theory problems, need help with questions 1.1.6, 1.1.7, 1.1.8

1.1.6. (-) Determine whether the graph below decomposes into copies of PA. 1.1.7. (-) Prove that a graph with more than six vertices of odd degree cannot be decomposed into three paths. 1.1.8. (-) Prove that the 8-vertex graph on the left below decomposes into copies of K1,3 and also into copies of P4