Help me please I don’t understand

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

Which coefficient matrix represents a system of linear equations that has a unique solution ? options in photo*

Common binomial factor of 6x(3x+7)+5(3x+7)