Evaluate
- $5 x$ , When $x = 4$ A) 9
B) 23
C) 20
D) 90

question 25

Multiple Choice

Evaluate.
- $5 x$ , when $x = 4$

• A) 9
• B) 23
• C) 20
• D) 90

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Definitions:

Marginal Cost

The price of making an additional unit of a product.

Slope

A measure of the steepness or incline of a line or surface, typically described as the ratio between the change in the y-value and the change in the x-value.

Variable

An element, feature, or factor that is likely to vary or change; it can be quantitative or qualitative in experiments and mathematical models.

Mathematical Convention

Established, standardized practices or rules that are followed within mathematical reasoning and calculations.