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.
Economics. In economics, the rate of interest is the price of credit, and it plays the role of the cost of capital. In a free market economy, interest rates are subject to the law of supply and demand of the money supply, and one explanation of the tendency of interest rates to be generally greater than zero is the scarcity of loanable funds.