Which best describes perpendicular lines? A) 2 lines intersecting at a right angle B) 2 lines intersecting at more than 1 point C) 2 lines never intersecting or D. 2 lines starting at the same point

Mrs. robinson bought a novel at a bookstore on sale for 20% off its regular price of $29.99. mr chang bought the same novel at a different bookstore for 10% off its regular price of $25. which person received the better discount?