Use the following to answer questions:
Figure: Demand and Marginal Revenue 
-(Figure: Demand and Marginal Revenue) The figure Demand and Marginal Revenue refers to a software upgrade. The producer incurred fixed costs of $10 million to produce the upgrade; the marginal cost of allowing consumers to download the upgrade is zero. What is the efficient price of the upgrade?
Definitions:
Radiocarbon Testing
A scientific method used to determine the age of an artifact or organic material by measuring its carbon-14 content.
Great Zimbabwe
An ancient city in the southeastern hills of Zimbabwe, known for its impressive stone structures and architecture, dating from the Late Iron Age.
14th Century
The century that spanned from January 1, 1301, to December 31, 1400, marked by transformations in Europe such as the Black Death.
Tassili n'Ajjer
A plateau in the Sahara desert, located in southeast Algeria, famed for its prehistoric rock art and dramatic landscapes.
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