Pls help math qucikly

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

1. find the area of the unshaded square 2. find the area of the large square 3. what is the area of the frame represented by the shaded region show

M.xyz =radians. covert this radian measure to its equivalent measure in degrees.