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A theater sells a combo pack of popcorn, a soft drink, and a movie ticket for $12. For groups of five or greater, the theater gives a group discount of $3 per person. What is the total cost for a class of 30 students?

Can someone Put the mathematical sentence as well?  



Answer :

ZackFry
12 X 30 = 360.  3 X 30 = 90.  360 - 90 = 270.  The total cost for a class of 30 students is $270. 

If C is cost and S is number of students, the mathematical sentence is:  C = S X 12 - (S X 3). 

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