so I think I've figured out part a) but I'm not sure..
my solution is: a) part i) $v_1 \rightarrow v_3 \rightarrow v_7 \rightarrow v_5 \rightarrow v_8 \rightarrow v_4 \rightarrow v_2 \rightarrow v_6$ ?
I'm also not sure where to start on b) , I know how to get the degrees (or at least I think I know how) I think the deg($v_1$) $= 4$
thanks in advance.