What is the importance of the real number system? i need sentences (complete sentences)

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?

Write an equation for the function that includes the points (2,100)and (3,100)

Write the expression 7x^3-28xy^2 as the product of 3 factors