Let $x = - 3 , y = 7$ And $z = - 1$

question 157

Multiple Choice

Let $x = - 3 , y = 7$ and $z = - 1$ Evaluate the expression to find $D$ $$D = x y z$$

• A) \(D = - 21\)
• B) \(D = - 49\)
• C) \(D = 21\)
• D) \(D = - 9\)
• E) \(D = 1\)

---

Definitions:

Society

A group of individuals who live in a structured and interdependent community with shared laws and institutions.

Economics

The field of social science focusing on the decision-making processes used by individuals, governments, businesses, and countries in distributing limited resources to fulfill their endless desires.

Industrial Revolution

A period of major industrialization that took place during the late 1700s and early 1800s, leading to significant changes in technology, economy, and society.

Modern Factory System

An approach to manufacturing that involves large-scale, mechanized production methods, often under one roof or within one facility, leading to the increased efficiency and production output.