In Making a Gasket, a Mechanic Lays Off 18 Equally

question 2

Multiple Choice

In making a gasket, a mechanic lays off 18 equally spaced holes on the circumference. Find the number of degrees between the centers of the holes.

• A) 20
• B) 30
• C) 36
• D) 45

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Definitions:

Interest Rate

The percentage of a sum of money charged for its use, often expressed as an annual percentage rate.

Present Value

The value today of a sum of money or series of payments expected in the future, adjusted for a certain rate of return.

Interest Rate

The cost of borrowing money or the return on investment, expressed as a percentage of the amount borrowed or invested.

Usury Law

A law that establishes the highest interest rates that lenders can apply to borrowed money.