Find the Sum of the First 13 Terms of the Arithmetic

question 17

Multiple Choice

Find the sum of the first 13 terms of the arithmetic progression: 3, - 4, - 11,... ​

• A) - 39
• B) - 500
• C) - 507
• D) - 1,521

---

Definitions:

Environmental Consequences

The outcomes or impacts of actions and decisions on the natural environment, including effects on air, water, and land.

Human Behaviour

The study of how people act, interact, and respond in different environments and social setups.

Enactive Mastery

A concept from self-efficacy theory referring to gaining confidence through successfully performing a task or skill.

Albert Bandura

A psychologist renowned for his work on social learning theory, notably the concept of observational learning and self-efficacy.