PLEASE HELP ASAP PLEASE​

What is the quadric regression equation that fits these data

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 an bif a = {3, 6, 9, 12) and b = {2, 4, 6, 8, 10).