The National Labor Relations Act gave public sector employees substantive rights to organize into labor unions

XYZ company's REA diagram depicts the following entities: sales, inventory, salesperson, cashier, customer, cash receipts, and cash. The inventory-sales and cash receipts-sales relationships are both many-to-many. How many tables does it need to implement its REA diagram in a relational database?

A. 8 B. 7 C. 9 D. 10

For what number of theater patrons n is the likelihood about a coin flip that there will be that number or fewer based on Scenario B.1?

A) three B) four C) five D) six