Express the Set in Interval Notation $( - \infty , 8 )$

question 53

Multiple Choice

Express the set in interval notation.

• A) \(( - \infty , 8 )\)
• B) \([ 8,9 )\)
• C) \(( 8,9 ]\)
• D) \([ 8,9 ]\)

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Definitions:

Real Exchange Rate

The rate at which a person can exchange the currency of one country for the currency of another and obtain the same quantity of goods.

Purchasing-power Parity

An economic theory that compares different countries' currencies through a "basket of goods" approach to assess relative currency value and living standards.

Nominal Exchange Rate

The Nominal Exchange Rate is the rate at which one country's currency can be traded for another's, not adjusted for inflation, reflecting the current value of one currency compared to another.

Prices

The monetary value expected, demanded, or delivered in exchange for a good or service.