The MP3 player that Nicky purchased was marked 20% off the original price. At the register the clerk marked $48 off the original price. What was the original price of the MP3 player?

Aline is perpendicular to another line m2= (-1/m1), where m1 is the slope of the original line and m2 is the slope of the perpendicular line. which of the following equations represents the line that passes through the point (-2,1) and is perpendicular to the line below?