MATH: HOMEWORK please help me? thank you!?

[**milla**]

(A.)Find the slope of a line perpendicular to the graph of each equation: y = 2x
(B.)Tell wether the lines for the pair of equation are parallel, perpendicular, or neither:
y = 4x + 3/4, y = -1/4 + 4
(C.)Write an equation that satisfies the given conditions:
parallel to y = -3x, through ( 3,0 )
(D.)Write an equation for a line that contains the given points:
(0, -3 ) and (1/2, 6 )
(E.)Write an equation of a line that is parallel to each line and an equation of a line that is perpendicular to each line:
12.) 4x + 5y = 10
13.) y = 2/3x + 1/6