Poland's free-market reforms under its new president in 1990 caused *

It caused severe unemployment,

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- KAYLEE

Explanation:

the answer that best explains what happened to george washington at fort necessity, pennsylvania is : washington was attacked by the french but was able to negotiate with them to peacefully end fighting. the battle took place on july 3, 1754. the battle is considered as being the start of the french and indian war.