Write the Solution Set Using Interval Notation

question 157

Multiple Choice

Write the solution set using interval notation.
-A student scored 74,89 , and 95 on three algebra tests. What must he score on the fourth test in order to have an average grade of at least 85 ?

• A) 30
• B) 65
• C) 82
• D) 86

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Definitions:

Price Level

A measure of the average prices of goods and services in an economy at a given time, impacting purchasing power and inflation.

Nominal GDP

Current price-based valuation of every final good and service produced within a nation's boundaries in a set timeframe.

Real GDP

Real Gross Domestic Product (GDP) measures the value of all finished goods and services produced within a country's borders, adjusted for inflation, within a specific time period.

Price Level

The averaged-out price for the total spectrum of goods and services in the economy.