Trigonometry
Special Right Triangles
Find the exact value of cosec 90* + cot 30* - tan 0*.

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

Im so bad at fractions they are not my best math thing to work on

What is the scale factor of axyz to auvw?