question 9

Essay

$\text { Prove that if } f : X \rightarrow Y \text { and } g : Y \rightarrow Z \text { are onto, then } g \circ f : X \rightarrow Z \text { is also onto. }$

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Definitions:

Yupik Eskimo

Indigenous people from the western, southwestern, and southcentral Alaska and Russian Far East, known for their traditional subsistence fishing and hunting lifestyle.

16th-Century Codex

A manuscript book from the 16th century, often elaborately decorated and containing historical, religious, or scientific texts.

Folio

A page of a manuscript or book.

Market Wage

The prevailing wage rate in a labor market, determined by supply and demand for labor.