Answer
$\phi=2.0\times10^5\frac{Nm^2}{C}$
Work Step by Step
We can determine the net flux through the surface by the formula:
$\phi=\frac{q}{\epsilon_{\circ}}$
Putting the values, we get
$\phi=\frac{1.8\times10^{-6}}{8.85\times10^{-12}}$
$\phi=2.0\times10^5\frac{Nm^2}{C}$
