96 passengers rode in a train from city a to city b. tickets for regular coach seats cost $111. tickets for sleeper cars seats cost $297. the receipts for the trip totaled $20,700. how many passengers purchased each type of ticket?

Nick has box brads. he uses 4 brads for the first project. nick let’s b represent the original number of brads and finds that for the second project, the number of brads he uses is 8 more than half the difference of b and 4. write an expression to represent the number of brads he uses for the second project.