n the month of March, Sunland Salon services 600 clients at an average price of $100. During the month, fixed costs were $15,378 and variable costs were 67% of sales. Determine the total contribution margin in dollars, the per unit contribution margin, and the contribution margin ratio. Contribution margin in dollars $ Contribution margin per unit $ Contribution margin ratio % Using the contribution margin technique, compute the break-even point in dollars and in units. Break-even sales $ Break-even sales units

Which stroke of the four-stroke cycle is shown in the above figure? a. power b. compression c. exhaust d. intake

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.

(a) what was the opportunity cost of non-gm food for many buyers before 2008? (b) why did they prefer the alternative? (c) what was the opportunity cost in 2008? (d) why did it change?