SAT Math Practice Question
The Downtown Business Association (DBA) in a certain city plans to increase its membership by a total of $n$ businesses per year. There were $b$ businesses in the DBA at the beginning of this year. Which function best models the total number of businesses, $y$, the DBA plans to have as members $x$ years from now?
- A.$y=n x+b$
- B.$y=n x-b$
- C.$y=b(n)^{x}$
- D.$y=n(b)^{x}$
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