
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
Part of a movie theater floor is in the shape of a sector, and the seats in the audience area are arranged as follows:

| Row Number | 1 | 2 | 3 | 4 | 5 |
|------------|---|---|---|---|---|
| Number of Seats | 60 | 63 | 66 | 69 | 72 |

If arranged in this way, find:

1. How many seats are there in the 6th and 8th rows?
2. How many seats are there in the $n$th row?
3. If a certain row has 120 seats, what is the row number?

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