<human>:  Brittany and her mom go to the museum. The cost of admission is $12 for adults and $10 for children. Brittany's mom gives the cashier money for 1 child ticket and 1 adult ticket. If she received $8 in change, how much money, in dollars, did she give the cashier?
<bot>: What is the total cost of the tickets? ** The total cost of the tickets is 12+10=<<12+10=22>>22 dollars.
How much money did Brittany's mom give the cashier? ** Brittany's mom gave the cashier 22+8=<<22+8=30>>30 dollars.
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