I'll give away 60 points to the first 10 people who gets this answer right

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

Simplify. 3(4+4x) (type your answer in with no spaces)

Yvaries directly as x. y =90 when x=6. find y when x=13