Evaluate
- $$\left| \begin{array} { r r r } - 1 & - 3 & 4 \\- 4 & - 3 & - 3 \\1 & - 3 & - 5\end{array} \right|$$

question 89

Multiple Choice

Evaluate.
- $$\left| \begin{array} { r r r } - 1 & - 3 & 4 \\- 4 & - 3 & - 3 \\1 & - 3 & - 5\end{array} \right|$$

• A) \(- 123\)
• B) 123
• C) \(- 39\)
• D) 105

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Definitions:

Short Run

A period in which at least one factor of production is fixed and cannot be changed.

Purely Competitive Industry

A market structure characterized by many small firms producing identical products, with no single firm able to influence market prices.

Long Run

A period of time in economics where all factors of production and costs can be varied, allowing for the adjustment of all inputs.