The formula to determine energy is E- E = 1/2 mu? What is the formula solved for ?

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

If you could answer these your a life saver

Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'