The number of people employed by the city in 1990 was 220. In 2000, there were 440 employees. In 2010, the number had grown to 880. What is the index number for city employment in 2000 relative to 1990?

The Business Mathematics DSST covers what you would learn during a single semester of a Business Math college class.

The DSST Business Mathematics exam covers the following topics:

Number sense
Algebraic Concepts
Statistics
Business Applications
Financial Mathematics.

The Business Applications section comprises 50% of the exam questions, including topics such as index numbers, interest, depreciation, taxes, cost calculations, investment performance measures, and cost minimization, among others.