Question
Last weekend, Riordan, his wife, his 18 year-old daughter and 15 year-old son visited the zoo. The admission fees are as follows:

Adult (above 12) $10
Child $4

How much did the family pay altogether?
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Last weekend, Riordan, his wife, his 18 year-old daughter and 15 year-old son visited the zoo. The admission fees are as follows:

Adult (above 12) $10
Child $4

How much did the family pay altogether?