When Was the First Confirmed Exoplanet Discovered

question 68

Multiple Choice

When was the first confirmed exoplanet discovered?

• A) Shortly after the invention of the telescope, in the early 1600s
• B) In prehistoric times
• C) Around 350 BC, by the Ancient Greeks
• D) Early in the 21st century
• E) Near the end of the 20th century

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Definitions:

Mark-up

The upcharge on the cost of merchandise to accommodate overhead expenses and profitability.

Retail Price

The total cost at which a product is sold to the end consumer, inclusive of all taxes, shipping, and handling fees.

Operating Expenses

Costs associated with running a day-to-day business operation, such as salaries, rent, and utilities.

Mark-up

An extra charge on top of the cost price for items, aimed at covering both overhead expenses and profits, described in terms of a percentage of the initial cost.