Look at the above figures. Which pair of angles form adjacent complementary angles?

In the figure $\mathrm{l}\left|\right|\mathrm{}\mathrm{m}\mathrm{}$ and $\mathrm{}\mathrm{p}$ is a transversal. If $\mathrm{x}=3\mathrm{x}+20$ and $\mathrm{y}=2\mathrm{x}–20$, then what is $\mathrm{x}–\mathrm{y}$?

In the figure $\mathrm{P}\mathrm{Q}\mathrm{}\left|\right|\mathrm{}\mathrm{R}\mathrm{S}$. If $\mathrm{\angle }\mathrm{O}\mathrm{P}\mathrm{Q}=120°\mathrm{}$and $\mathrm{\angle }\mathrm{O}\mathrm{R}\mathrm{S}=110°,$ then what is the measure of $\mathrm{\angle }\mathrm{P}\mathrm{O}\mathrm{R}?$