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Biology 21 Online
OpenStudy (anonymous):

Mr. Anderson is taking a group of junior high school students (7th and 8th graders) on a field trip to a local observatory. The cost for 7th graders is $6 and the cost for 8th graders is $6.50. In the equation C = 6x + 6.5y, what does the variable C represent?

OpenStudy (anonymous):

Total cost

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