I need help ASAP whatever will work please and Thankyou!

Given right triangle xyz, which correctly describes the locations of the sides in relation to

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

What is not true about kl and mn? what is mn? (show )