Suppose $| A | = 8 \text { and } | B | = 4$

question 2

Short Answer

Suppose $| A | = 8 \text { and } | B | = 4$ . Find the number of functions $f : A \rightarrow B$ that are onto $B$ .

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Definitions:

Price-Earnings Ratio

A valuation ratio of a company's current share price compared to its per-share earnings, often used to assess if a stock is over or under-valued.

Net Income

The total profit of a company after all expenses and taxes have been deducted from revenues, indicating the financial performance over a specific time period.

Interest Expense

The cost incurred by an entity for borrowed funds over a period of time.

Price-Earnings Ratio

A valuation metric for stocks, calculated by dividing the current market price of the stock by its earnings per share.