If the function is one-to-one, find its inverse. if not, write "not one-to-one." f(x) = -8x + 1

Step-by-step explanation:

A linear function is always a one-to-one function.

Switch y and x.

x = -8y + 1

-1/8x + 1/8 = f(x)

if you are saying purchasing 3 social media ads and one newspaper ad counts as one purchase then there are:

6 purchases

if you are asking how many of each then:

18 social media ads

6 newspaper ads