A gardener wants to build a fence around his square garden. He only has 64 feet of fencing
material. Which inequality shows all the side
lengths, x, that the fence could have?

64 = 4x

64 divided by the total sides the garden has, 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