You just returned from some extensive traveling throughout the Americas. You started your trip with $20,000 in your pocket. You spent 3.4 million pesos while in Chile and 16,500 bolivares in Venezuela. Then on the way home, you spent 47,500 pesos in Mexico. How many dollars did you have left by the time you returned to the U.S. given the following exchange rates? (Note:
Multiple symbols are used to designate various currencies. For example, the U.S. dollar is notated as "$" or as "USD".) 
Definitions:
Wernicke's Area
Wernicke's Area is a region in the brain associated with language comprehension and the production of meaningful speech, typically located in the left temporal lobe.
Misinformation Effect
A phenomenon where a person's recollection of an event can be influenced by misleading information presented after the event.
State-dependent Memory
The phenomenon where information learned in a particular physiological or psychological state is more easily recalled when in the same state.
Retroactive Interference
The phenomenon that occurs when newly learned information interferes with the recall of information learned previously.
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