Find an equation of the line pararle to y=2x-6 thats passes through the point (3,-8) if possible write in slope intercept form

Fanny mendelssohn manages all the magazines and paperback books at a local grocery store. she prices many paperbacks to sell at $7.99. the cost to the store is $5.29. what is the markup rate on a paperback book, based on its cost?

Does anyone know how to do geometryme with this problem

Thee blue triangle has rotated from quadrant i to quadrant iii about the origin. describe the effects of the rotation on the coordinates of the blue triangle.