Ms. Monahan has 25 students in her class, of whom 15 are girls. She conducts a weekly drawing from a bag that contains pieces of paper with students names. What is the probability that she randomly chooses a boy?

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