All stars emit energy and some of it is in the form of light. All stars can be seen without a telescope on a clear night. 7). Marcus has learned that the Sun is a star, but not the largest star in our galaxy.
Interest rate. Interest rate is the percentage of the face value of a bond or the balance in a deposit account that you receive as income on your investment. If you multiply the interest rate by the face value or balance, you find the annual amount you receive. For example, if you buy a bond with a face value of $1,000 with a 6% interest rate, you'll receive $60 a year. Similarly, the percentage of principal you pay for the use of borrowed money is the loan's interest rate.
The real interest rate in an economy is often the rate of return on a risk free investment, such as US Treasury notes, minus an index of inflation, such as the CPI, or GDP deflator.