How to calculate percentage increase

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?

Find the midpoint m of z1=(8+5i) and z2=(12+3i)

True or false look at the picture pls : /