Respuesta :
Well, you simply plug the values in where they should be plugged in. There are 4 students (s) and 4 adults (a):
Total Cost = $9(4) + $6(4)
Total Cost = $36 + $24
Total Cost = $60
Total Cost = $9(4) + $6(4)
Total Cost = $36 + $24
Total Cost = $60