Mrs. Shaughnessy’s science class and Mr. Ruth’s social studies class are going on two separate field trips. They have the same budget for their trips. Mrs. Shaughnessy’s class has 30 students, and they are taking a bus to a planetarium. Mr. Ruth’s class of 20 students is taking the subway to a museum. Admission to the planetarium is 12 the cost of admission to the museum, as shown in the table. What is the cost of admission per student to the museum?