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Why do interests rates on loans to be lower in a weak economy than in a strong one

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?

Acircle has a radius of 5/6 units and is centered at (3.6, 7.8) write the equation of this circle