
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
$\textbf{Catherine's Vintage Postcards}$

Catherine organizes her postcard collection by country and by the decade in which they were acquired. The prices she paid for them at an antique store were: Italy and Germany, $10$ cents each, Canada $7$ cents each, and Mexico $8$ cents each. (Italy and Germany are European countries and Canada and Mexico are in North America.) Catherine has the following number of postcards from each decade and country:

| Decade  | Italy | Germany | Canada | Mexico |
|---------|-------|---------|--------|--------|
| 1950s   | 10    | 5       | 8      | 12     |
| 1960s   | 16    | 12      | 10     | 15     |
| 1970s   | 12    | 18      | 13     | 9      |

In dollars and cents, how much did her European postcards issued before the $80s$ cost her?

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