What is the inverse of this function?

The inverse function will be x = (y) = 4 +  

Step-by-step explanation:

Given,

y =

To find the inverse of this function means we have to find the value of x in terms of y

Now,

y =

or, y - 2 = [ subtracting 2 from both side]

or, (y-2)(x-4) = a [ by cross multiplication)

or, x-4 =

or, x = 4 +

Hence, x = (y) = 4 +  

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