A standard deck of 52 playing cards contains 13 cards in each four of suits

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

80x^8−68x^6+16^5−20x^4−4x^3+8x^2

hope i'm right lol