Question 120·Hard·Systems of Two Linear Equations in Two Variables

The graph shows two lines, $p$ and $q$. The solution to the system of linear equations represented by the graph is the point $(x,y)$ where the two lines intersect.

Without solving for $x$ and $y$, which choice gives the value of $k$ in the equation $15x + 2y = k$ for that solution $(x,y)$?