what’s the y intercept and slope of all the questions

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

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?

Which is the scale factor proportion for the enlargement shown?