Please help me out!! :)

Which expression calculates the speed in meters per second of an object that travels a distance of 100 m every 20 seconds

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

Solve the equation using the given values: x= -2.5; y= -7.51. 2xy + 2x²