13/20 as a percent and 7/25 as a percent to no need to show work just need the straight up percent

In the polynomial below, what number should replace the question mark to produce a difference of squares? x2 + ? x - 36

Solve for x and y a x= 13.3 y= 16.7 b x= 23.3 y= 12.5 c x= 7.5 y= 16.7 d x=7.5 y= 12.5

In the picture below, line pq is parallel to line rs, and the lines are cut by a transversal, line tu. the transversal is not perpendicular to the parallel lines. note: figure is not drawn to scale. which of the following are congruent angles?