Rationalise the denominator and simplify 1/√5

1√5 / 5 or √5/5

Step-by-step explanation:

To rationalize, we need to multiply the denominator by √5:

1/√5

1*√5 / √5*√5

1√5 / 5

See attachment for math work and answer.

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