
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 bookstore has two sales promotions. Promotion A says, "Buy one book, get the second book for 40% off." Promotion B says, "Buy one book, get $15 off the second book." Michael wants to buy two books each priced at $45. Additionally, there is a local tax rate of 8%. Michael wants to use the promotion that results in the lowest total cost after tax. How much does Michael save by choosing the better promotion over the other?

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