Mary spent 5 x $6 = $<<5*6=30>>30 on drinks.
She spent 10 x $14 = $<<10*14=140>>140 on pizzas.
She spent a total amount of $30 + $140 = $<<30+140=170>>170.
Therefore, Mary got a change of $200 - $170 = $<<200-170=30>>30 after paying all the items for her pizza party.
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