Solve the system by substitution.
y = -2
y = -9x + 21
Pls help

How far is x from 5 on a number line?

Which of the following is most likely the next step in the series? a3z, b6y, c9x, d12w, е15v, f18u

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?