Please answer i will mark the brain liset

Agiven line has the equation 2x + 12y = −1. what is the equation, in slope-intercept form, of the line that is perpendicular to the given line and passes through the point (0, 9)? y = ( )x + 9

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

Ineed i been stuck on this question since yesterday