Suppose the Number of Quickie Hamburgers (In Millions) Served Yearly $f ( x ) = 35.8 e ^ { 0.17 x }$

Multiple Choice

Suppose the number of Quickie hamburgers (in millions) served yearly can be modeled by $f ( x ) = 35.8 e ^ { 0.17 x }$ Approximate how many years it takes for the number of hamburgers served to reach 54 million. Round to the nearest year.

A) 2 yr
B) 3 yr
C) 1 yr
D) 4 yr