A variable cost is a cost that.

A) varies per unit at every level of activity.
B) occurs at various times during the year.
C) various in total in proportion to changes in the level of activity.
D) may or may not be incurred, depending on management's discretion.

Belstone, inc. is a merchandiser of stone ornaments. it sold 15,000 units during the year. the company has provided the following information: sales revenue $ 520,000 purchases (excluding freight in) 338,500 selling and administrative expenses 32,000 freight in 15,000 beginning merchandise inventory 43,000 ending merchandise inventory 58,500 how much is the gross profit for the year?

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.

The basic difference between macroeconomics and microeconomics is that: a. microeconomics looks at the forest (aggregate markets) while macroeconomics looks at the trees (individual markets). b. macroeconomics is concerned with groups of individuals while microeconomics is concerned with single countries. c. microeconomics is concerned with the trees (individual markets) while macroeconomics is concerned with the forest (aggregate markets). d. macroeconomics is concerned with generalization while microeconomics is concerned with specialization.