Understanding $V_{}(s)$ with Gridworld

$v_{}(s){\displaystyle \underset{a}{\overset{?}{}}}(a|s){\displaystyle \underset{s^{\text{'}}}{\overset{?}{}}},rp(s^{\text{'}},r|s,a)[r+v_{}(s^{\text{'}})]$

Verify $V_{}($s$)$ using Bellman equation for this state

with $=0\mathrm{.}9,$ and equiprobable random policy