Due in 2 hours! help please!
step by step explanation.

Two lines parallel to the same plane are parallel to eachother

Which graph represents the equation y =4x

Three numbers x, y, and z are in the ratio 2: 7: 8. if 12 is subtracted from y, then three numbers form a geometric sequence (in the order x, y–12, z). find x, y, and z. there are 2 sets.