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SAT® Math

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Moderate

A Successful Restaurant

SATMAT-KMDVDY

A restaurant started with $10$ employees. After $1$ year, there were $19$ employees. After $2$ years, there were $45$ employees. And after $3$ years, this number had increased to $93$ employees.

Which of the following equations, in which $ E $ represents the number of employees, and $ y $ indicates the number of years after the restaurant began, best models the number of people employed by this successful restaurant?

(No Calculator)

A

$ E=9y+10 $

B

$ E=10{ (2) }^{ y} $

C

$ E=9{ y }^{ 2 }+10 $

D

$ E=31y $