What type of decisions could be made by viewing the queries? Who would be able to benefit from using these queries?

What will be an ideal response?

The existing queries would be beneficial to employees and management. Management could make decisions about their employees such as those regarding salaries and promotions. Employees could service members much better by encouraging them to work toward earning member rewards. They also can encourage members who haven't taken lessons to do so. Additionally, they can use the query that calculates daily revenue to balance the register each night.