I have no idea what I'm doing :^ A theater has a seating capacity of 800 and charges $2.50 for children, $4 for students, and $5.50 for adults. At a certain screening with full attendance, there were half as many adults as children and students combined. The total money brought in was $3450. Fill in the blank constants or variables to create a system that models this scenario

c+s+a=

=.5(s+c)

2.5c+4s+5.5a=