How Many Exoplanets Are Known (That Is, Have Been Confirmed)

question 74

Multiple Choice

How many exoplanets are known (that is, have been confirmed) to exist?

• A) 8
• B) 9
• C) 150
• D) 1,000-2,000
• E) more than 3,000

---

Definitions:

Cash Flows

The movement of money into and out of a business, used to assess the company's liquidity, financial health, and profitability over time.

Net Income

The total profit of a company after all expenses, including taxes and interest, have been deducted from total revenue; also known as net earnings or net profit.

Net Present Value

A method used in capital budgeting to evaluate the profitability of an investment by calculating the difference between the present value of cash inflows and outflows.

Internal Rate of Return

A metric used in capital budgeting to estimate the profitability of potential investments, calculated as the discount rate that makes the net present value of all cash flows from a particular project equal to zero.