the phone case you want to buy is marked down 30%, and you have a 25% off coupon. you pay $42.00, can this equation be used to find the original price of the phone case? if so, what is the original price of the item? explain.

Which statements are true? check all that apply. the line x = 0 is perpendicular to the line y = –3. all lines that are parallel to the y-axis are vertical lines. all lines that are perpendicular to the x-axis have a slope of 0. the equation of the line parallel to the x-axis that passes through the point (2, –6) is x = 2. the equation of the line perpendicular to the y-axis that passes through the point (–5, 1) is y = 1.