Use chebyshev's inequality to show that $P(S>22)\geq73/80$ and Use the central limit theorem to estimate $P(S>22)$

Question

I am struggling to solve this problem but don't know how to do it. Any help or hint will be appreciated.

Let's roll $12$ fair, six-sided dice. Let $S$ denote the sum of the results.

(i) Use chebyshev's inequality to show that $P(S>22)\geq73/80$

(ii) Use the central limit theorem to estimate $P(S>22)$