How do you solve this problem and what is the answer?

Mrs.renoir has completed the interior portion of a quilt top measuring

Which pair of lines is parallel? a. y=4x+1 and y+4=5 b. y=-2+x and 2y-2x=-2 c. y=1/4x + 2 and y-2=1/2x d. y=1/5x+1 and 5y+x= 10

What value of x is in the solution set of 4x - 12 s 16 + 8x? -10 -9 -8 -7