write the equation of the line that passes through the point (-2,7) and is perpendicular to a line that passes through the points (-6,1) and (0,4)

This is about circle theorems. someone asap : (

Qrst is a parallelogram. determine the measure of ∠q pls

If a distance of 75 yds is measured back from the edge of the canyon and two angles are measured , find the distance across the canyon angle acb = 50° angle abc=100° a=75 yds what does c equal?