Which of the following expressions represents "the difference of 8 and n"?

Harry’s soccer team plays 2 nonconference games for every 3 games that they play against conference opponents. if y represents the number of nonconference games and x represents the number of conference games, which equation best models this proportional relationship? a)y=2/3 x b)y=3/2 x c)y = 2x d)y = 6x

How to choose the sign of the radical in the denominator of the formula for the distance from a point to a line.

Which value of m will create a system of parallel lines with no solution? y= mx - 6 8x - 4y = 12