Reinforcement Learning Exercise 5.5

Exercise 5.5 Consider an MDP with a single nonterminal state and a single action that transitions back to the nonterminal state with probability $p$ and transitions to the terminal state with probability $1-p$. Let the reward be $+1$ on all transitions, and let $\gamma =1$. Suppose you observe one episode that lasts 10 steps, with a return of 10. What are the first-visit and every-visit estimators of the value of the nonterminal state?

For the first-visit estimator, only the first visit of a state is considered. So:
$$\begin{array}{r}V(S_{nonterminal})\\ \\ \end{array}$$