Question

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?






A.


the total number of 7th graders attending the field trip




B.


the total number of students attending the field trip




C.


the total cost of taking the 8th graders on the field trip




D.


the total cost of taking all the students on the field trip