The 1/3% would equal .33% hopefully that helps at least a little
In the figure the segment both VU and V'U' are horizontal, so the segment VU was scaled by a factor of 2 to dilate it and get the segment V'U'.
You can check that the same factor was used for all the segments to obtain a similar figure.
C because 15$ is less than 30$ I have steps in comments
No clue, we need a graph of some sort
