Which of the following statements must be true about this diagram? Check all that apply.
zo
A. W>X
B. x+y=
O C. W> y
D. Z> X
E. y + z = w
F. x + y = w

Just tell me how to set up the equation.

Expresa commuter train leaves downtown sation and travels at a average speed of 55 miles per hour towards the north side sation, which is 50miles away. thirty minutes later, express commuter train #7 leaves north side and travels at a average speed of 35miles per hour towards downtown sation. at the moment the two trains pass each other, how far(in miles) is train #12 from the downtown sation and how long(in minutes) has the #12 train been traveling

Aphrase is shown read the phrase and give me the answer