Please find what the measures of m∠1, m∠2, and m∠3 equals.

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 fraction that is equivalent to 3/8

What are the measures of angles a, b, and c? show your work and explain your answers. 25 points