Translate the word phrase into a math expression. 11 fewer than the quotient of 2 and a number

11−(n÷2)

11−n÷2

11−(2÷n)

2÷n−11

good job you smart son of a gun you are smarter that einstein. 7

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