Given that resources are scarce, Multiple Choice 1. A "free lunch" is possible, but only for a limited number of people. 2. Opportunity costs are experienced whenever choices are made. 3. Poor countries must make choices, but rich countries with abundant resources do not have to make choices. 4. Some choices involve opportunity costs while other choices do not.

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What should a food worker use to retrieve ice from an ice machine?

Employees at a library check out books to patrons. books have an isbn and a name. the library sometimes has multiple copies of the same book. books have one or more authors. a patron is an individual who has an active (non-expired) library card. for each library card, we store the person's first and last names and their address. for each employee, we store their employee id, current salary, first and last name and their address. we also store the employee id of their current manager. each time we check out a book to a patron we need to store the date of the transaction, the employee who checked out the book to the patron, and the library card of the patron. some employees have library cards. if an employee patron turns in a book late, the fine that they pay is a percentage of their salary. some employees are authors who have library cards—they are allowed to check out as many books as they like.