Solve
- $$\begin{array} { l } 5 x + 2 y + z = - 11 \\2 x - 3 y - z = 17 \\7 x + y + 2 z = - 4\end{array}$$

question 4

Multiple Choice

Solve.
- $$\begin{array} { l } 5 x + 2 y + z = - 11 \\2 x - 3 y - z = 17 \\7 x + y + 2 z = - 4\end{array}$$

• A) \(( 3,0 , - 4 )\)
• B) \(( 0 , - 6,1 )\)
• C) \(( 0,6 , - 1 )\)
• D) \(( - 3,0,4 )\)

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Definitions:

Explicit Cost

A cost that requires an outlay of money.

Economic Profit

Revenue minus the opportunity cost of resources used; usually less than the accounting profit.

Accounting Profit

Revenue minus explicit cost.

Factors of Production

The resources used in the creation of goods and services, traditionally categorized into land, labor, capital, and entrepreneurship.