How Many Presidents Have Been Unmarried While Serving as President

question 62

Multiple Choice

How many presidents have been unmarried while serving as president?

• A) zero
• B) one
• C) two
• D) four
• E) six

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Definitions:

Directly Proportional

The relationship between two variables where if one variable increases, the other variable increases by the same factor.

Total Revenue

The total income generated from the sale of goods or services, calculated as the unit price multiplied by the quantity sold.

Constant of Proportionality

The constant of proportionality is the factor that relates two variables that are directly proportional to one another.

Stack Emissions

Gases or particles released into the atmosphere from industrial stacks or chimneys.