human
Mary bought 5 boxes of drinks at $6 each box and 10 boxes of pizzas at $14 each box for her pizza party. She paid $200 for all the items. How much change did she get back?
assistant
How much did Mary spend on drinks? ** Mary spent 5 x $6 = $<<5*6=30>>30 on drinks.
How much did Mary spend on pizzas? ** She spent 10 x $14 = $<<10*14=140>>140 on pizzas.
How much did Mary spend in total? ** She spent a total amount of $30 + $140 = $<<30+140=170>>170.
How much change did Mary get back? ** 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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