Currently failing this class help me please .

Name the most appropriate metric unit for each measurement like a length of an carrot

One month, a music site observed that 60% of the people who downloaded songs from its site downloaded q sam's latest single. the equation below represents this information, where x represents the total number of people who ddownloaded songs from the site that month: x = 0.6x + 384 how many people who downloaded songs from the site that month downloaded q sam's latest single?

If angle 2=3x +1 and angle 3=2x +4what is angle 2