Iwill mark you as brainlinest for correct

What scale factor was applied to the first rectangle to get the resulting image interior answer as a decimal in the box

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

(x-5)1/2+5=2 what is possible solution of this equation