Add Do Not Use a Number Line Except as a Check

question 86

Multiple Choice

Add. Do not use a number line except as a check.
- $$- \frac { 5 } { 14 } + \frac { 16 } { 21 }$$

• A) \(\frac { 17 } { 42 }\)
• B) \(\frac { 11 } { 21 }\)
• C) \(\frac { 19 } { 21 }\)
• D) \(\frac { 17 } { 21 }\)

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Definitions:

Marginal Cost

The incremental cost of manufacturing one more unit of a product or service.

Marginal Benefit

The enhanced satisfaction or advantage experienced from the consumption of one extra unit of a product or service.

Economic Perspective

A viewpoint that analyzes individuals' decisions based on costs, benefits, and rational self-interest within the framework of scarcity and resource allocation.

Economizing Problem

The fundamental economic issue of meeting unlimited wants with limited resources, necessitating choices and priorities in resource allocation.