Markov Chains & Long-Run Behavior · Easy problem

The chain with transition matrix $M = \begin{pmatrix} 0.7 & 0.1 \\ 0.3 & 0.9 \end{pmatrix}$ (columns sum to $1$) is regular, so $M^n$ converges to a limit matrix $L$ as $n \to \infty$. What is the entry $L_{12}$ (row 1, column 2)? Express your answer as a decimal.