Suppose the local pizza restaurant wants to hire another delivery driver to replace the worker who recently quit. The former worker could make 40 deliveries per week. The restaurant has received three applications from equally qualified workers. If it hires any one of these workers, it could boost deliveries by 30 deliveries per week. If each of these applicants is capable of boosting deliveries by 30 per week, what would happen to deliveries if the restaurant hired all three of the applicants?