
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
A store usually sells windows at $150 each. This week, the store is offering two free windows for each purchase of nine. Liam needs ten windows and Mia needs twelve windows. If they decide to buy the windows jointly, how much will they save compared to buying them separately?
A) $0$
B) $150$
C) $300$
D) $450$
E) $600$

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