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medium · SAT Math

A group of friends buys tickets to a movie theater, where the total cost of the tickets, in dollars, is given by the expression 12.50a + 8.25c, in which a is the number of adult tickets purchased and c is the number of child tickets purchased.

Which of the following is the best interpretation of the number 12.50 in this context?

  1. The flat fee for booking the group
  2. The total number of adults in the group
  3. The total cost for all adult tickets
  4. The price of one adult ticket

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