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Money words

Miles per gallon

How many miles a car can go on one gallon of gas. A higher number means the car uses less fuel.

Also called: mpg

How “miles per gallon” came up in recent issues.

Commodity
A basic raw material, like oil, wheat or copper, that is bought and sold in large amounts. Its price moves with supply and demand.
Crude oil
Oil as it comes out of the ground, before it is made into gas and other fuels.
Demand
How much of something people want to buy at each price. When the price goes up, people usually buy less.
Dow Jones Industrial Average
A stock market index that tracks 30 large U.S. companies.
Federal Reserve
The U.S. central bank, often called the Fed. It raises or lowers a key interest rate to keep prices stable and jobs plentiful.
Interest
The price of borrowing money. Borrowers pay it, and savers earn it.

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