Use the Echelon Method to Solve the System $$\begin{array}{l}\frac{3 x}{2}-\frac{y}{3}=-18 \\\frac{3 x}{4}+\frac{2 y}{9}=-9\end{array}$$

question 71

Multiple Choice

Use the echelon method to solve the system.
- $$\begin{array}{l}\frac{3 x}{2}-\frac{y}{3}=-18 \\\frac{3 x}{4}+\frac{2 y}{9}=-9\end{array}$$

• A) \( (0,-12) \)
• B) \( (-12,0) \)
• C) \( (12,0) \)
• D) \( (0,12) \)

Explain the significance of secondary sex characteristics and their development.

Understand the methods used in research to study adolescent behavior and feelings.

Explain the growth patterns and physical development during adolescence.

Understand the role of peers and social environment in adolescent development.

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Definitions:

Land Availability

The extent to which usable land is accessible for a specific purpose, such as agriculture, urban development, or conservation.

Pollution Prevention

Strategies and practices aimed at reducing or eliminating sources of pollution to prevent damage to the environment.

Urban Growth

The expansion of cities and towns as populations increase and new developments are built, often leading to challenges like congestion and pollution.

Air Pollutants

Substances in the air that can harm human health or the environment, including particulates, sulfur dioxide, carbon monoxide, and ozone.