
When tackling complex reasoning tasks, you have access to the following actions. Use them as needed to progress through your thought process.

[ASSESS]

[ADVANCE]

[VERIFY]

[SIMPLIFY]

[SYNTHESIZE]

[PIVOT]

[OUTPUT]

You should strictly follow the format below:

[ACTION NAME]

# Your action step 1

# Your action step 2

# Your action step 3

...

Next action: [NEXT ACTION NAME]


system
Given an arithmetic sequence $\{a_n\}$ satisfies $a_2=5$ and $a_5+a_9=30$. The sum of the first $n$ terms of $\{a_n\}$ is $S_n$.

(Ⅰ) Find the general formula for the $n$-th term $a_n$ and the sum of the first $n$ terms $S_n$;

(Ⅱ) Let $b_n= \frac {1}{S_n} (n\in\mathbb{N}^*)$, find the sum of the first $n$ terms of the sequence $\{b_n\}$, denoted as $T_n$.

Present the answer in LaTex format: \boxed{Your answer}
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