Use Green's Theorem to evaluate the following line integral. Assume the curve is oriented counterclockwise. A sketch is helpful.\\
$\oint_C (5y - 4, 3x^2 + 1) \cdot dr$, where $C$ is the boundary of the rectangle with vertices $(0, 0)$, $(4, 0)$, $(4, 3)$, and $(0, 3)$