TASK DEFINITION: You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For simplicity, answers should be in all lower cased letters.
PROBLEM: Category: I'M JUST RUNNING IN FOR... 
Clue: ...20 first-class stamps, which will now cost this much total

SOLUTION: $7.40

PROBLEM: Category: NOTABLE WOMEN 
Clue: In 1904 this American impressionist painter was awarded the French Legion of Honor

SOLUTION: mary cassatt

PROBLEM: Category: POTPOURRI 
Clue: Navigational instruments are displayed at the Maritime Museum near Franklin Court in this Penn. city

SOLUTION:
philadelphia