Answer
$g(16)=54.22$
This tells us that 54.22 percent of college students are predicted to be taking at least one online course in 2016 (which is x=16 years after 2000).
Work Step by Step
We can find $g(16)$ by plugging $x=16$ into the given equation for $g(x)$.
$g(x)=0.07x^{2}+1.9x+5.9$
$g(16)=0.07(16)^{2}+1.9\times16+5.9=0.07\times16\times16+30.4+5.9=17.92+30.4+5.9=54.22$