Due very soon so if someone could answer soon-ish it would be very helpful and much appreciated <3<3<3
 1) A straight line is perpendicular to y=2x+5 and passes through (0,3).
 What is the equation of the line??
 2) A straight line is perpendicular to y=0.5x+3 and passes through (3,5).
 What is the equation of the line??
 3) A straight line is perpendicular to y=4-5x and passes through (20,5).
 What is the equation of the line??