How to simplify each expression 2/3(7w + 4) - 1/3 (2w - 1 ) (3-7m) +2(3.5m+ 1)

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

Anyone know? will mark brainliest if correct!

Explain how you can use the associative property to evaluate (7x50)x4.