Is 10 a solution to the following inequality? 7x-13< 56

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?

What is the number 321,000,000 in scientific notation? also what is the number? ?

2y= 3 2 x−2 y = − 1 3 x + 1 y=− 3 1 x+1