Three terms of an arithmetic sequence are shown below. which recursive formula defines the sequence? : f(1) = 6, f(4) = 12, f(7) = 18

a. f (n + 1) = f(n) + 6

b. f (n + 1) = 2f(n)

c. f (n + 1) = f(n) + 2

d. f (n + 1) = 1.5f(n)

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?

This is so hard and it’s for a test

What is the value of x in the following equation? -3x-2=2x+8